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Finding the Fourth Proportional to 3,948.03, 5,451.03 and 2,456.61

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Solution

The fourth proportional to 3,948.03, 5,451.03 and 2,456.61 is: 3,391.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.03 : 5,451.03 = 2,456.61 : x
  2. Step 2: Convert to fraction form
    3,948.03/5,451.03 = 2,456.61/x
  3. Step 3: Cross multiply
    3,948.03x = 5,451.03 × 2,456.61
  4. Step 4: Simplify right side
    3,948.03x = 13,391,054.81
  5. Step 5: Solve for x
    x = 13,391,054.81/3,948.03
  6. Step 6: Final answer
    x = 3,391.83

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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.