Home / 3,451.10-5,176.65-1,142.30

Finding the Fourth Proportional to 3,451.10, 5,176.65 and 1,142.30

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Solution

The fourth proportional to 3,451.10, 5,176.65 and 1,142.30 is: 1,713.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,451.10 : 5,176.65 = 1,142.30 : x
  2. Step 2: Convert to fraction form
    3,451.10/5,176.65 = 1,142.30/x
  3. Step 3: Cross multiply
    3,451.10x = 5,176.65 × 1,142.30
  4. Step 4: Simplify right side
    3,451.10x = 5,913,287.30
  5. Step 5: Solve for x
    x = 5,913,287.30/3,451.10
  6. Step 6: Final answer
    x = 1,713.45

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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.