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Finding the Fourth Proportional to 3,712.93, 5,129.10 and 3,248.19

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Solution

The fourth proportional to 3,712.93, 5,129.10 and 3,248.19 is: 4,487.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.93 : 5,129.10 = 3,248.19 : x
  2. Step 2: Convert to fraction form
    3,712.93/5,129.10 = 3,248.19/x
  3. Step 3: Cross multiply
    3,712.93x = 5,129.10 × 3,248.19
  4. Step 4: Simplify right side
    3,712.93x = 16,660,291.33
  5. Step 5: Solve for x
    x = 16,660,291.33/3,712.93
  6. Step 6: Final answer
    x = 4,487.10

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Half scale
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Double scale
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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.