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Finding the Fourth Proportional to 3,648.97, 5,473.68 and 2,478.48

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Solution

The fourth proportional to 3,648.97, 5,473.68 and 2,478.48 is: 3,717.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,648.97 : 5,473.68 = 2,478.48 : x
  2. Step 2: Convert to fraction form
    3,648.97/5,473.68 = 2,478.48/x
  3. Step 3: Cross multiply
    3,648.97x = 5,473.68 × 2,478.48
  4. Step 4: Simplify right side
    3,648.97x = 13,566,406.41
  5. Step 5: Solve for x
    x = 13,566,406.41/3,648.97
  6. Step 6: Final answer
    x = 3,717.87

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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.