Home / 1,724.66-2,378.44-1,126.61

Finding the Fourth Proportional to 1,724.66, 2,378.44 and 1,126.61

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Solution

The fourth proportional to 1,724.66, 2,378.44 and 1,126.61 is: 1,553.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,724.66 : 2,378.44 = 1,126.61 : x
  2. Step 2: Convert to fraction form
    1,724.66/2,378.44 = 1,126.61/x
  3. Step 3: Cross multiply
    1,724.66x = 2,378.44 × 1,126.61
  4. Step 4: Simplify right side
    1,724.66x = 2,679,574.29
  5. Step 5: Solve for x
    x = 2,679,574.29/1,724.66
  6. Step 6: Final answer
    x = 1,553.68

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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.