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Finding the Fourth Proportional to 6,657.90, 9,985.88 and 2,655.27

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Solution

The fourth proportional to 6,657.90, 9,985.88 and 2,655.27 is: 3,982.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,657.90 : 9,985.88 = 2,655.27 : x
  2. Step 2: Convert to fraction form
    6,657.90/9,985.88 = 2,655.27/x
  3. Step 3: Cross multiply
    6,657.90x = 9,985.88 × 2,655.27
  4. Step 4: Simplify right side
    6,657.90x = 26,515,194.31
  5. Step 5: Solve for x
    x = 26,515,194.31/6,657.90
  6. Step 6: Final answer
    x = 3,982.52

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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.