Home / 5,149.89-7,106.97-3,132.61

Finding the Fourth Proportional to 5,149.89, 7,106.97 and 3,132.61

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Solution

The fourth proportional to 5,149.89, 7,106.97 and 3,132.61 is: 4,323.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.89 : 7,106.97 = 3,132.61 : x
  2. Step 2: Convert to fraction form
    5,149.89/7,106.97 = 3,132.61/x
  3. Step 3: Cross multiply
    5,149.89x = 7,106.97 × 3,132.61
  4. Step 4: Simplify right side
    5,149.89x = 22,263,359.27
  5. Step 5: Solve for x
    x = 22,263,359.27/5,149.89
  6. Step 6: Final answer
    x = 4,323.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.