Home / 3,557.29-5,335.47-1,091.90

Finding the Fourth Proportional to 3,557.29, 5,335.47 and 1,091.90

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Solution

The fourth proportional to 3,557.29, 5,335.47 and 1,091.90 is: 1,637.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,557.29 : 5,335.47 = 1,091.90 : x
  2. Step 2: Convert to fraction form
    3,557.29/5,335.47 = 1,091.90/x
  3. Step 3: Cross multiply
    3,557.29x = 5,335.47 × 1,091.90
  4. Step 4: Simplify right side
    3,557.29x = 5,825,794.23
  5. Step 5: Solve for x
    x = 5,825,794.23/3,557.29
  6. Step 6: Final answer
    x = 1,637.71

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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.