Home / 7,691.32-11,535.72-2,145.04

Finding the Fourth Proportional to 7,691.32, 11,535.72 and 2,145.04

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Solution

The fourth proportional to 7,691.32, 11,535.72 and 2,145.04 is: 3,217.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,691.32 : 11,535.72 = 2,145.04 : x
  2. Step 2: Convert to fraction form
    7,691.32/11,535.72 = 2,145.04/x
  3. Step 3: Cross multiply
    7,691.32x = 11,535.72 × 2,145.04
  4. Step 4: Simplify right side
    7,691.32x = 24,744,580.83
  5. Step 5: Solve for x
    x = 24,744,580.83/7,691.32
  6. Step 6: Final answer
    x = 3,217.21

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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.