Home / 2,261.15-3,391.86-1,028.66

Finding the Fourth Proportional to 2,261.15, 3,391.86 and 1,028.66

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Solution

The fourth proportional to 2,261.15, 3,391.86 and 1,028.66 is: 1,543.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261.15 : 3,391.86 = 1,028.66 : x
  2. Step 2: Convert to fraction form
    2,261.15/3,391.86 = 1,028.66/x
  3. Step 3: Cross multiply
    2,261.15x = 3,391.86 × 1,028.66
  4. Step 4: Simplify right side
    2,261.15x = 3,489,053.75
  5. Step 5: Solve for x
    x = 3,489,053.75/2,261.15
  6. Step 6: Final answer
    x = 1,543.05

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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.