Home / 4,887.79-7,331.68-1,377.79

Finding the Fourth Proportional to 4,887.79, 7,331.68 and 1,377.79

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Solution

The fourth proportional to 4,887.79, 7,331.68 and 1,377.79 is: 2,066.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,887.79 : 7,331.68 = 1,377.79 : x
  2. Step 2: Convert to fraction form
    4,887.79/7,331.68 = 1,377.79/x
  3. Step 3: Cross multiply
    4,887.79x = 7,331.68 × 1,377.79
  4. Step 4: Simplify right side
    4,887.79x = 10,101,540.02
  5. Step 5: Solve for x
    x = 10,101,540.02/4,887.79
  6. Step 6: Final answer
    x = 2,066.69

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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.