Home / 1,589.25-2,380.41-1,129.08

Finding the Fourth Proportional to 1,589.25, 2,380.41 and 1,129.08

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Solution

The fourth proportional to 1,589.25, 2,380.41 and 1,129.08 is: 1,691.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,589.25 : 2,380.41 = 1,129.08 : x
  2. Step 2: Convert to fraction form
    1,589.25/2,380.41 = 1,129.08/x
  3. Step 3: Cross multiply
    1,589.25x = 2,380.41 × 1,129.08
  4. Step 4: Simplify right side
    1,589.25x = 2,687,679.99
  5. Step 5: Solve for x
    x = 2,687,679.99/1,589.25
  6. Step 6: Final answer
    x = 1,691.16

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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.