Home / 7,712.32-11,568.52-2,781.04

Finding the Fourth Proportional to 7,712.32, 11,568.52 and 2,781.04

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Solution

The fourth proportional to 7,712.32, 11,568.52 and 2,781.04 is: 4,171.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,712.32 : 11,568.52 = 2,781.04 : x
  2. Step 2: Convert to fraction form
    7,712.32/11,568.52 = 2,781.04/x
  3. Step 3: Cross multiply
    7,712.32x = 11,568.52 × 2,781.04
  4. Step 4: Simplify right side
    7,712.32x = 32,172,516.86
  5. Step 5: Solve for x
    x = 32,172,516.86/7,712.32
  6. Step 6: Final answer
    x = 4,171.57

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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.