Home / 7,689.29-11,531.80-3,008.35

Finding the Fourth Proportional to 7,689.29, 11,531.80 and 3,008.35

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Solution

The fourth proportional to 7,689.29, 11,531.80 and 3,008.35 is: 4,511.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,689.29 : 11,531.80 = 3,008.35 : x
  2. Step 2: Convert to fraction form
    7,689.29/11,531.80 = 3,008.35/x
  3. Step 3: Cross multiply
    7,689.29x = 11,531.80 × 3,008.35
  4. Step 4: Simplify right side
    7,689.29x = 34,691,690.53
  5. Step 5: Solve for x
    x = 34,691,690.53/7,689.29
  6. Step 6: Final answer
    x = 4,511.69

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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.