Home / 5,387.60-7,435.05-3,151.10

Finding the Fourth Proportional to 5,387.60, 7,435.05 and 3,151.10

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Solution

The fourth proportional to 5,387.60, 7,435.05 and 3,151.10 is: 4,348.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387.60 : 7,435.05 = 3,151.10 : x
  2. Step 2: Convert to fraction form
    5,387.60/7,435.05 = 3,151.10/x
  3. Step 3: Cross multiply
    5,387.60x = 7,435.05 × 3,151.10
  4. Step 4: Simplify right side
    5,387.60x = 23,428,586.06
  5. Step 5: Solve for x
    x = 23,428,586.06/5,387.60
  6. Step 6: Final answer
    x = 4,348.61

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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.