Home / 3,431.92-5,148.28-1,241.68

Finding the Fourth Proportional to 3,431.92, 5,148.28 and 1,241.68

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Solution

The fourth proportional to 3,431.92, 5,148.28 and 1,241.68 is: 1,862.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.92 : 5,148.28 = 1,241.68 : x
  2. Step 2: Convert to fraction form
    3,431.92/5,148.28 = 1,241.68/x
  3. Step 3: Cross multiply
    3,431.92x = 5,148.28 × 1,241.68
  4. Step 4: Simplify right side
    3,431.92x = 6,392,516.31
  5. Step 5: Solve for x
    x = 6,392,516.31/3,431.92
  6. Step 6: Final answer
    x = 1,862.66

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Double scale
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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.