Home / 7,716.28-11,572.61-2,170.15

Finding the Fourth Proportional to 7,716.28, 11,572.61 and 2,170.15

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Solution

The fourth proportional to 7,716.28, 11,572.61 and 2,170.15 is: 3,254.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,716.28 : 11,572.61 = 2,170.15 : x
  2. Step 2: Convert to fraction form
    7,716.28/11,572.61 = 2,170.15/x
  3. Step 3: Cross multiply
    7,716.28x = 11,572.61 × 2,170.15
  4. Step 4: Simplify right side
    7,716.28x = 25,114,299.59
  5. Step 5: Solve for x
    x = 25,114,299.59/7,716.28
  6. Step 6: Final answer
    x = 3,254.72

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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.