Home / 5,412.69-8,119.04-1,517.13

Finding the Fourth Proportional to 5,412.69, 8,119.04 and 1,517.13

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Solution

The fourth proportional to 5,412.69, 8,119.04 and 1,517.13 is: 2,275.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.69 : 8,119.04 = 1,517.13 : x
  2. Step 2: Convert to fraction form
    5,412.69/8,119.04 = 1,517.13/x
  3. Step 3: Cross multiply
    5,412.69x = 8,119.04 × 1,517.13
  4. Step 4: Simplify right side
    5,412.69x = 12,317,631.57
  5. Step 5: Solve for x
    x = 12,317,631.57/5,412.69
  6. Step 6: Final answer
    x = 2,275.70

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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.