Home / 1,972.38-2,721.85-1,088.17

Finding the Fourth Proportional to 1,972.38, 2,721.85 and 1,088.17

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Solution

The fourth proportional to 1,972.38, 2,721.85 and 1,088.17 is: 1,501.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.38 : 2,721.85 = 1,088.17 : x
  2. Step 2: Convert to fraction form
    1,972.38/2,721.85 = 1,088.17/x
  3. Step 3: Cross multiply
    1,972.38x = 2,721.85 × 1,088.17
  4. Step 4: Simplify right side
    1,972.38x = 2,961,832.11
  5. Step 5: Solve for x
    x = 2,961,832.11/1,972.38
  6. Step 6: Final answer
    x = 1,501.65

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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.