Home / 3,179.86-4,770.93-1,331.17

Finding the Fourth Proportional to 3,179.86, 4,770.93 and 1,331.17

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Solution

The fourth proportional to 3,179.86, 4,770.93 and 1,331.17 is: 1,997.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.86 : 4,770.93 = 1,331.17 : x
  2. Step 2: Convert to fraction form
    3,179.86/4,770.93 = 1,331.17/x
  3. Step 3: Cross multiply
    3,179.86x = 4,770.93 × 1,331.17
  4. Step 4: Simplify right side
    3,179.86x = 6,350,911.95
  5. Step 5: Solve for x
    x = 6,350,911.95/3,179.86
  6. Step 6: Final answer
    x = 1,997.23

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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.