Home / 3,931.38-5,423.49-2,534.58

Finding the Fourth Proportional to 3,931.38, 5,423.49 and 2,534.58

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Solution

The fourth proportional to 3,931.38, 5,423.49 and 2,534.58 is: 3,496.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.38 : 5,423.49 = 2,534.58 : x
  2. Step 2: Convert to fraction form
    3,931.38/5,423.49 = 2,534.58/x
  3. Step 3: Cross multiply
    3,931.38x = 5,423.49 × 2,534.58
  4. Step 4: Simplify right side
    3,931.38x = 13,746,269.28
  5. Step 5: Solve for x
    x = 13,746,269.28/3,931.38
  6. Step 6: Final answer
    x = 3,496.55

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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.