Home / 1,548.11-2,321.26-726.77

Finding the Fourth Proportional to 1,548.11, 2,321.26 and 726.77

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Solution

The fourth proportional to 1,548.11, 2,321.26 and 726.77 is: 1,089.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,548.11 : 2,321.26 = 726.77 : x
  2. Step 2: Convert to fraction form
    1,548.11/2,321.26 = 726.77/x
  3. Step 3: Cross multiply
    1,548.11x = 2,321.26 × 726.77
  4. Step 4: Simplify right side
    1,548.11x = 1,687,026.12
  5. Step 5: Solve for x
    x = 1,687,026.12/1,548.11
  6. Step 6: Final answer
    x = 1,089.73

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1.5x scale

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.