Home / 3,712.40-5,568.61-1,520.74

Finding the Fourth Proportional to 3,712.40, 5,568.61 and 1,520.74

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Solution

The fourth proportional to 3,712.40, 5,568.61 and 1,520.74 is: 2,281.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.40 : 5,568.61 = 1,520.74 : x
  2. Step 2: Convert to fraction form
    3,712.40/5,568.61 = 1,520.74/x
  3. Step 3: Cross multiply
    3,712.40x = 5,568.61 × 1,520.74
  4. Step 4: Simplify right side
    3,712.40x = 8,468,407.97
  5. Step 5: Solve for x
    x = 8,468,407.97/3,712.40
  6. Step 6: Final answer
    x = 2,281.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.