Home / 4,882.10-7,319.55-3,318.20

Finding the Fourth Proportional to 4,882.10, 7,319.55 and 3,318.20

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Solution

The fourth proportional to 4,882.10, 7,319.55 and 3,318.20 is: 4,974.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,882.10 : 7,319.55 = 3,318.20 : x
  2. Step 2: Convert to fraction form
    4,882.10/7,319.55 = 3,318.20/x
  3. Step 3: Cross multiply
    4,882.10x = 7,319.55 × 3,318.20
  4. Step 4: Simplify right side
    4,882.10x = 24,287,730.81
  5. Step 5: Solve for x
    x = 24,287,730.81/4,882.10
  6. Step 6: Final answer
    x = 4,974.85

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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.