Home / 2,589.66-3,881.61-1,125.99

Finding the Fourth Proportional to 2,589.66, 3,881.61 and 1,125.99

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Solution

The fourth proportional to 2,589.66, 3,881.61 and 1,125.99 is: 1,687.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,589.66 : 3,881.61 = 1,125.99 : x
  2. Step 2: Convert to fraction form
    2,589.66/3,881.61 = 1,125.99/x
  3. Step 3: Cross multiply
    2,589.66x = 3,881.61 × 1,125.99
  4. Step 4: Simplify right side
    2,589.66x = 4,370,654.04
  5. Step 5: Solve for x
    x = 4,370,654.04/2,589.66
  6. Step 6: Final answer
    x = 1,687.73

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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.