Home / 3,179.56-4,770.66-1,331.08

Finding the Fourth Proportional to 3,179.56, 4,770.66 and 1,331.08

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Solution

The fourth proportional to 3,179.56, 4,770.66 and 1,331.08 is: 1,997.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.56 : 4,770.66 = 1,331.08 : x
  2. Step 2: Convert to fraction form
    3,179.56/4,770.66 = 1,331.08/x
  3. Step 3: Cross multiply
    3,179.56x = 4,770.66 × 1,331.08
  4. Step 4: Simplify right side
    3,179.56x = 6,350,130.11
  5. Step 5: Solve for x
    x = 6,350,130.11/3,179.56
  6. Step 6: Final answer
    x = 1,997.17

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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.