Home / 3,127.75-4,691.63-1,179.50

Finding the Fourth Proportional to 3,127.75, 4,691.63 and 1,179.50

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Solution

The fourth proportional to 3,127.75, 4,691.63 and 1,179.50 is: 1,769.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.75 : 4,691.63 = 1,179.50 : x
  2. Step 2: Convert to fraction form
    3,127.75/4,691.63 = 1,179.50/x
  3. Step 3: Cross multiply
    3,127.75x = 4,691.63 × 1,179.50
  4. Step 4: Simplify right side
    3,127.75x = 5,533,759.96
  5. Step 5: Solve for x
    x = 5,533,759.96/3,127.75
  6. Step 6: Final answer
    x = 1,769.25

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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.