Home / 4,928.52-7,389.90-3,387.72

Finding the Fourth Proportional to 4,928.52, 7,389.90 and 3,387.72

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Solution

The fourth proportional to 4,928.52, 7,389.90 and 3,387.72 is: 5,079.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,928.52 : 7,389.90 = 3,387.72 : x
  2. Step 2: Convert to fraction form
    4,928.52/7,389.90 = 3,387.72/x
  3. Step 3: Cross multiply
    4,928.52x = 7,389.90 × 3,387.72
  4. Step 4: Simplify right side
    4,928.52x = 25,034,912.03
  5. Step 5: Solve for x
    x = 25,034,912.03/4,928.52
  6. Step 6: Final answer
    x = 5,079.60

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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.