Home / 1,551.30-2,324.97-727.76

Finding the Fourth Proportional to 1,551.30, 2,324.97 and 727.76

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Solution

The fourth proportional to 1,551.30, 2,324.97 and 727.76 is: 1,090.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551.30 : 2,324.97 = 727.76 : x
  2. Step 2: Convert to fraction form
    1,551.30/2,324.97 = 727.76/x
  3. Step 3: Cross multiply
    1,551.30x = 2,324.97 × 727.76
  4. Step 4: Simplify right side
    1,551.30x = 1,692,008.54
  5. Step 5: Solve for x
    x = 1,692,008.54/1,551.30
  6. Step 6: Final answer
    x = 1,090.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.