Home / 1,724.46-2,380.62-1,167.86

Finding the Fourth Proportional to 1,724.46, 2,380.62 and 1,167.86

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Solution

The fourth proportional to 1,724.46, 2,380.62 and 1,167.86 is: 1,612.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,724.46 : 2,380.62 = 1,167.86 : x
  2. Step 2: Convert to fraction form
    1,724.46/2,380.62 = 1,167.86/x
  3. Step 3: Cross multiply
    1,724.46x = 2,380.62 × 1,167.86
  4. Step 4: Simplify right side
    1,724.46x = 2,780,230.87
  5. Step 5: Solve for x
    x = 2,780,230.87/1,724.46
  6. Step 6: Final answer
    x = 1,612.23

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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.