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Finding the Fourth Proportional to 5,689.16, 8,539.02 and 2,917.88

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Solution

The fourth proportional to 5,689.16, 8,539.02 and 2,917.88 is: 4,379.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,689.16 : 8,539.02 = 2,917.88 : x
  2. Step 2: Convert to fraction form
    5,689.16/8,539.02 = 2,917.88/x
  3. Step 3: Cross multiply
    5,689.16x = 8,539.02 × 2,917.88
  4. Step 4: Simplify right side
    5,689.16x = 24,915,835.68
  5. Step 5: Solve for x
    x = 24,915,835.68/5,689.16
  6. Step 6: Final answer
    x = 4,379.53

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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.