Home / 1,727.17-2,589.30-630.90

Finding the Fourth Proportional to 1,727.17, 2,589.30 and 630.90

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Solution

The fourth proportional to 1,727.17, 2,589.30 and 630.90 is: 945.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,727.17 : 2,589.30 = 630.90 : x
  2. Step 2: Convert to fraction form
    1,727.17/2,589.30 = 630.90/x
  3. Step 3: Cross multiply
    1,727.17x = 2,589.30 × 630.90
  4. Step 4: Simplify right side
    1,727.17x = 1,633,589.37
  5. Step 5: Solve for x
    x = 1,633,589.37/1,727.17
  6. Step 6: Final answer
    x = 945.82

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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.