Home / 4,691.20-7,036.80-3,228.88

Finding the Fourth Proportional to 4,691.20, 7,036.80 and 3,228.88

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Solution

The fourth proportional to 4,691.20, 7,036.80 and 3,228.88 is: 4,843.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,691.20 : 7,036.80 = 3,228.88 : x
  2. Step 2: Convert to fraction form
    4,691.20/7,036.80 = 3,228.88/x
  3. Step 3: Cross multiply
    4,691.20x = 7,036.80 × 3,228.88
  4. Step 4: Simplify right side
    4,691.20x = 22,720,982.78
  5. Step 5: Solve for x
    x = 22,720,982.78/4,691.20
  6. Step 6: Final answer
    x = 4,843.32

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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.