Home / 2,371.30-3,556.95-727.86

Finding the Fourth Proportional to 2,371.30, 3,556.95 and 727.86

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Solution

The fourth proportional to 2,371.30, 3,556.95 and 727.86 is: 1,091.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,371.30 : 3,556.95 = 727.86 : x
  2. Step 2: Convert to fraction form
    2,371.30/3,556.95 = 727.86/x
  3. Step 3: Cross multiply
    2,371.30x = 3,556.95 × 727.86
  4. Step 4: Simplify right side
    2,371.30x = 2,588,965.30
  5. Step 5: Solve for x
    x = 2,588,965.30/2,371.30
  6. Step 6: Final answer
    x = 1,091.79

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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.