Home / 1,972.82-2,722.46-1,088.61

Finding the Fourth Proportional to 1,972.82, 2,722.46 and 1,088.61

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Solution

The fourth proportional to 1,972.82, 2,722.46 and 1,088.61 is: 1,502.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.82 : 2,722.46 = 1,088.61 : x
  2. Step 2: Convert to fraction form
    1,972.82/2,722.46 = 1,088.61/x
  3. Step 3: Cross multiply
    1,972.82x = 2,722.46 × 1,088.61
  4. Step 4: Simplify right side
    1,972.82x = 2,963,691.74
  5. Step 5: Solve for x
    x = 2,963,691.74/1,972.82
  6. Step 6: Final answer
    x = 1,502.27

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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.