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Finding the Fourth Proportional to 8,890.85, 13,336.28 and 2,655.24

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Solution

The fourth proportional to 8,890.85, 13,336.28 and 2,655.24 is: 3,982.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,890.85 : 13,336.28 = 2,655.24 : x
  2. Step 2: Convert to fraction form
    8,890.85/13,336.28 = 2,655.24/x
  3. Step 3: Cross multiply
    8,890.85x = 13,336.28 × 2,655.24
  4. Step 4: Simplify right side
    8,890.85x = 35,411,064.55
  5. Step 5: Solve for x
    x = 35,411,064.55/8,890.85
  6. Step 6: Final answer
    x = 3,982.87

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.