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Finding the Fourth Proportional to 5,499.90, 8,253.90 and 3,422.93

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Solution

The fourth proportional to 5,499.90, 8,253.90 and 3,422.93 is: 5,136.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,499.90 : 8,253.90 = 3,422.93 : x
  2. Step 2: Convert to fraction form
    5,499.90/8,253.90 = 3,422.93/x
  3. Step 3: Cross multiply
    5,499.90x = 8,253.90 × 3,422.93
  4. Step 4: Simplify right side
    5,499.90x = 28,252,480.66
  5. Step 5: Solve for x
    x = 28,252,480.66/5,499.90
  6. Step 6: Final answer
    x = 5,136.91

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1.5x scale

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.