Home / 5,447.20-8,155.68-3,494.56

Finding the Fourth Proportional to 5,447.20, 8,155.68 and 3,494.56

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Solution

The fourth proportional to 5,447.20, 8,155.68 and 3,494.56 is: 5,232.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,447.20 : 8,155.68 = 3,494.56 : x
  2. Step 2: Convert to fraction form
    5,447.20/8,155.68 = 3,494.56/x
  3. Step 3: Cross multiply
    5,447.20x = 8,155.68 × 3,494.56
  4. Step 4: Simplify right side
    5,447.20x = 28,500,513.10
  5. Step 5: Solve for x
    x = 28,500,513.10/5,447.20
  6. Step 6: Final answer
    x = 5,232.14

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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.