Home / 4,542.40-6,815.20-4,382.40

Finding the Fourth Proportional to 4,542.40, 6,815.20 and 4,382.40

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Solution

The fourth proportional to 4,542.40, 6,815.20 and 4,382.40 is: 6,575.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,542.40 : 6,815.20 = 4,382.40 : x
  2. Step 2: Convert to fraction form
    4,542.40/6,815.20 = 4,382.40/x
  3. Step 3: Cross multiply
    4,542.40x = 6,815.20 × 4,382.40
  4. Step 4: Simplify right side
    4,542.40x = 29,866,932.48
  5. Step 5: Solve for x
    x = 29,866,932.48/4,542.40
  6. Step 6: Final answer
    x = 6,575.14

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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.