Home / 2,089.97-3,129.29-1,357.73

Finding the Fourth Proportional to 2,089.97, 3,129.29 and 1,357.73

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Solution

The fourth proportional to 2,089.97, 3,129.29 and 1,357.73 is: 2,032.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,089.97 : 3,129.29 = 1,357.73 : x
  2. Step 2: Convert to fraction form
    2,089.97/3,129.29 = 1,357.73/x
  3. Step 3: Cross multiply
    2,089.97x = 3,129.29 × 1,357.73
  4. Step 4: Simplify right side
    2,089.97x = 4,248,724.12
  5. Step 5: Solve for x
    x = 4,248,724.12/2,089.97
  6. Step 6: Final answer
    x = 2,032.91

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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.