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Finding the Fourth Proportional to 6,375.72, 8,801.49 and 4,254.78

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Solution

The fourth proportional to 6,375.72, 8,801.49 and 4,254.78 is: 5,873.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,375.72 : 8,801.49 = 4,254.78 : x
  2. Step 2: Convert to fraction form
    6,375.72/8,801.49 = 4,254.78/x
  3. Step 3: Cross multiply
    6,375.72x = 8,801.49 × 4,254.78
  4. Step 4: Simplify right side
    6,375.72x = 37,448,403.62
  5. Step 5: Solve for x
    x = 37,448,403.62/6,375.72
  6. Step 6: Final answer
    x = 5,873.60

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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.