Home / 3,581.28-4,939.92-2,587.68

Finding the Fourth Proportional to 3,581.28, 4,939.92 and 2,587.68

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Solution

The fourth proportional to 3,581.28, 4,939.92 and 2,587.68 is: 3,569.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.28 : 4,939.92 = 2,587.68 : x
  2. Step 2: Convert to fraction form
    3,581.28/4,939.92 = 2,587.68/x
  3. Step 3: Cross multiply
    3,581.28x = 4,939.92 × 2,587.68
  4. Step 4: Simplify right side
    3,581.28x = 12,782,932.19
  5. Step 5: Solve for x
    x = 12,782,932.19/3,581.28
  6. Step 6: Final answer
    x = 3,569.38

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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.