Home / 5,281.20-7,288.98-3,395.12

Finding the Fourth Proportional to 5,281.20, 7,288.98 and 3,395.12

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Solution

The fourth proportional to 5,281.20, 7,288.98 and 3,395.12 is: 4,685.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.20 : 7,288.98 = 3,395.12 : x
  2. Step 2: Convert to fraction form
    5,281.20/7,288.98 = 3,395.12/x
  3. Step 3: Cross multiply
    5,281.20x = 7,288.98 × 3,395.12
  4. Step 4: Simplify right side
    5,281.20x = 24,746,961.78
  5. Step 5: Solve for x
    x = 24,746,961.78/5,281.20
  6. Step 6: Final answer
    x = 4,685.86

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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.