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Finding the Fourth Proportional to 7,449.88, 10,281.00 and 4,092.90

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Solution

The fourth proportional to 7,449.88, 10,281.00 and 4,092.90 is: 5,648.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,449.88 : 10,281.00 = 4,092.90 : x
  2. Step 2: Convert to fraction form
    7,449.88/10,281.00 = 4,092.90/x
  3. Step 3: Cross multiply
    7,449.88x = 10,281.00 × 4,092.90
  4. Step 4: Simplify right side
    7,449.88x = 42,079,120.25
  5. Step 5: Solve for x
    x = 42,079,120.25/7,449.88
  6. Step 6: Final answer
    x = 5,648.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.