Home / 5,281.38-7,285.11-3,488.87

Finding the Fourth Proportional to 5,281.38, 7,285.11 and 3,488.87

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Solution

The fourth proportional to 5,281.38, 7,285.11 and 3,488.87 is: 4,812.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.38 : 7,285.11 = 3,488.87 : x
  2. Step 2: Convert to fraction form
    5,281.38/7,285.11 = 3,488.87/x
  3. Step 3: Cross multiply
    5,281.38x = 7,285.11 × 3,488.87
  4. Step 4: Simplify right side
    5,281.38x = 25,416,765.30
  5. Step 5: Solve for x
    x = 25,416,765.30/5,281.38
  6. Step 6: Final answer
    x = 4,812.52

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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.