Home / 4,120.38-5,685.53-2,351.34

Finding the Fourth Proportional to 4,120.38, 5,685.53 and 2,351.34

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Solution

The fourth proportional to 4,120.38, 5,685.53 and 2,351.34 is: 3,244.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.38 : 5,685.53 = 2,351.34 : x
  2. Step 2: Convert to fraction form
    4,120.38/5,685.53 = 2,351.34/x
  3. Step 3: Cross multiply
    4,120.38x = 5,685.53 × 2,351.34
  4. Step 4: Simplify right side
    4,120.38x = 13,368,602.35
  5. Step 5: Solve for x
    x = 13,368,602.35/4,120.38
  6. Step 6: Final answer
    x = 3,244.51

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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.