Home / 5,443.20-8,149.68-3,490.56

Finding the Fourth Proportional to 5,443.20, 8,149.68 and 3,490.56

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Solution

The fourth proportional to 5,443.20, 8,149.68 and 3,490.56 is: 5,226.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,443.20 : 8,149.68 = 3,490.56 : x
  2. Step 2: Convert to fraction form
    5,443.20/8,149.68 = 3,490.56/x
  3. Step 3: Cross multiply
    5,443.20x = 8,149.68 × 3,490.56
  4. Step 4: Simplify right side
    5,443.20x = 28,446,947.02
  5. Step 5: Solve for x
    x = 28,446,947.02/5,443.20
  6. Step 6: Final answer
    x = 5,226.14

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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.