Home / 5,715.76-8,575.18-2,382.90

Finding the Fourth Proportional to 5,715.76, 8,575.18 and 2,382.90

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Solution

The fourth proportional to 5,715.76, 8,575.18 and 2,382.90 is: 3,575.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,715.76 : 8,575.18 = 2,382.90 : x
  2. Step 2: Convert to fraction form
    5,715.76/8,575.18 = 2,382.90/x
  3. Step 3: Cross multiply
    5,715.76x = 8,575.18 × 2,382.90
  4. Step 4: Simplify right side
    5,715.76x = 20,433,825.98
  5. Step 5: Solve for x
    x = 20,433,825.98/5,715.76
  6. Step 6: Final answer
    x = 3,575.00

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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.