Home / 3,411.62-5,117.18-1,331.23

Finding the Fourth Proportional to 3,411.62, 5,117.18 and 1,331.23

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Solution

The fourth proportional to 3,411.62, 5,117.18 and 1,331.23 is: 1,996.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,411.62 : 5,117.18 = 1,331.23 : x
  2. Step 2: Convert to fraction form
    3,411.62/5,117.18 = 1,331.23/x
  3. Step 3: Cross multiply
    3,411.62x = 5,117.18 × 1,331.23
  4. Step 4: Simplify right side
    3,411.62x = 6,812,134.07
  5. Step 5: Solve for x
    x = 6,812,134.07/3,411.62
  6. Step 6: Final answer
    x = 1,996.75

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Half scale
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Double scale
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Similar ratio
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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.