Home / 1,972.91-2,722.49-1,088.59

Finding the Fourth Proportional to 1,972.91, 2,722.49 and 1,088.59

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Solution

The fourth proportional to 1,972.91, 2,722.49 and 1,088.59 is: 1,502.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.91 : 2,722.49 = 1,088.59 : x
  2. Step 2: Convert to fraction form
    1,972.91/2,722.49 = 1,088.59/x
  3. Step 3: Cross multiply
    1,972.91x = 2,722.49 × 1,088.59
  4. Step 4: Simplify right side
    1,972.91x = 2,963,669.27
  5. Step 5: Solve for x
    x = 2,963,669.27/1,972.91
  6. Step 6: Final answer
    x = 1,502.18

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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.