Home / 7,687.28-11,531.32-2,492.76

Finding the Fourth Proportional to 7,687.28, 11,531.32 and 2,492.76

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Solution

The fourth proportional to 7,687.28, 11,531.32 and 2,492.76 is: 3,739.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,687.28 : 11,531.32 = 2,492.76 : x
  2. Step 2: Convert to fraction form
    7,687.28/11,531.32 = 2,492.76/x
  3. Step 3: Cross multiply
    7,687.28x = 11,531.32 × 2,492.76
  4. Step 4: Simplify right side
    7,687.28x = 28,744,813.24
  5. Step 5: Solve for x
    x = 28,744,813.24/7,687.28
  6. Step 6: Final answer
    x = 3,739.27

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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.