Home / 4,119.75-5,685.26-2,256.75

Finding the Fourth Proportional to 4,119.75, 5,685.26 and 2,256.75

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Solution

The fourth proportional to 4,119.75, 5,685.26 and 2,256.75 is: 3,114.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,119.75 : 5,685.26 = 2,256.75 : x
  2. Step 2: Convert to fraction form
    4,119.75/5,685.26 = 2,256.75/x
  3. Step 3: Cross multiply
    4,119.75x = 5,685.26 × 2,256.75
  4. Step 4: Simplify right side
    4,119.75x = 12,830,199.22
  5. Step 5: Solve for x
    x = 12,830,199.22/4,119.75
  6. Step 6: Final answer
    x = 3,114.32

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Half scale
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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.