Home / 3,177.50-4,761.71-1,396.43

Finding the Fourth Proportional to 3,177.50, 4,761.71 and 1,396.43

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Solution

The fourth proportional to 3,177.50, 4,761.71 and 1,396.43 is: 2,092.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.50 : 4,761.71 = 1,396.43 : x
  2. Step 2: Convert to fraction form
    3,177.50/4,761.71 = 1,396.43/x
  3. Step 3: Cross multiply
    3,177.50x = 4,761.71 × 1,396.43
  4. Step 4: Simplify right side
    3,177.50x = 6,649,381.05
  5. Step 5: Solve for x
    x = 6,649,381.05/3,177.50
  6. Step 6: Final answer
    x = 2,092.65

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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.