Home / 5,689.31-8,528.49-4,202.15

Finding the Fourth Proportional to 5,689.31, 8,528.49 and 4,202.15

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Solution

The fourth proportional to 5,689.31, 8,528.49 and 4,202.15 is: 6,299.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,689.31 : 8,528.49 = 4,202.15 : x
  2. Step 2: Convert to fraction form
    5,689.31/8,528.49 = 4,202.15/x
  3. Step 3: Cross multiply
    5,689.31x = 8,528.49 × 4,202.15
  4. Step 4: Simplify right side
    5,689.31x = 35,837,951.61
  5. Step 5: Solve for x
    x = 35,837,951.61/5,689.31
  6. Step 6: Final answer
    x = 6,299.18

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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.