Home / 3,100.50-4,649.68-1,251.14

Finding the Fourth Proportional to 3,100.50, 4,649.68 and 1,251.14

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Solution

The fourth proportional to 3,100.50, 4,649.68 and 1,251.14 is: 1,876.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,100.50 : 4,649.68 = 1,251.14 : x
  2. Step 2: Convert to fraction form
    3,100.50/4,649.68 = 1,251.14/x
  3. Step 3: Cross multiply
    3,100.50x = 4,649.68 × 1,251.14
  4. Step 4: Simplify right side
    3,100.50x = 5,817,400.64
  5. Step 5: Solve for x
    x = 5,817,400.64/3,100.50
  6. Step 6: Final answer
    x = 1,876.28

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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.