Home / 5,621.97-8,431.49-1,672.17

Finding the Fourth Proportional to 5,621.97, 8,431.49 and 1,672.17

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Solution

The fourth proportional to 5,621.97, 8,431.49 and 1,672.17 is: 2,507.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.97 : 8,431.49 = 1,672.17 : x
  2. Step 2: Convert to fraction form
    5,621.97/8,431.49 = 1,672.17/x
  3. Step 3: Cross multiply
    5,621.97x = 8,431.49 × 1,672.17
  4. Step 4: Simplify right side
    5,621.97x = 14,098,873.85
  5. Step 5: Solve for x
    x = 14,098,873.85/5,621.97
  6. Step 6: Final answer
    x = 2,507.82

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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.