Home / 1,972.28-2,721.77-1,088.08

Finding the Fourth Proportional to 1,972.28, 2,721.77 and 1,088.08

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Solution

The fourth proportional to 1,972.28, 2,721.77 and 1,088.08 is: 1,501.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.28 : 2,721.77 = 1,088.08 : x
  2. Step 2: Convert to fraction form
    1,972.28/2,721.77 = 1,088.08/x
  3. Step 3: Cross multiply
    1,972.28x = 2,721.77 × 1,088.08
  4. Step 4: Simplify right side
    1,972.28x = 2,961,499.42
  5. Step 5: Solve for x
    x = 2,961,499.42/1,972.28
  6. Step 6: Final answer
    x = 1,501.56

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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.