Home / 4,120.75-5,682.36-2,863.23

Finding the Fourth Proportional to 4,120.75, 5,682.36 and 2,863.23

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Solution

The fourth proportional to 4,120.75, 5,682.36 and 2,863.23 is: 3,948.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.75 : 5,682.36 = 2,863.23 : x
  2. Step 2: Convert to fraction form
    4,120.75/5,682.36 = 2,863.23/x
  3. Step 3: Cross multiply
    4,120.75x = 5,682.36 × 2,863.23
  4. Step 4: Simplify right side
    4,120.75x = 16,269,903.62
  5. Step 5: Solve for x
    x = 16,269,903.62/4,120.75
  6. Step 6: Final answer
    x = 3,948.29

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Find fourth proportional to 2,060.38, 2,841.18 and 1,431.62
Half scale
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Double scale
Find fourth proportional to 4,121.75, 5,683.74 and 2,864.23
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.