Home / 5,921.20-8,166.24-3,562.90

Finding the Fourth Proportional to 5,921.20, 8,166.24 and 3,562.90

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Solution

The fourth proportional to 5,921.20, 8,166.24 and 3,562.90 is: 4,913.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,921.20 : 8,166.24 = 3,562.90 : x
  2. Step 2: Convert to fraction form
    5,921.20/8,166.24 = 3,562.90/x
  3. Step 3: Cross multiply
    5,921.20x = 8,166.24 × 3,562.90
  4. Step 4: Simplify right side
    5,921.20x = 29,095,496.50
  5. Step 5: Solve for x
    x = 29,095,496.50/5,921.20
  6. Step 6: Final answer
    x = 4,913.78

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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.