Home / 2,887.18-3,984.31-1,691.93

Finding the Fourth Proportional to 2,887.18, 3,984.31 and 1,691.93

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Solution

The fourth proportional to 2,887.18, 3,984.31 and 1,691.93 is: 2,334.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.18 : 3,984.31 = 1,691.93 : x
  2. Step 2: Convert to fraction form
    2,887.18/3,984.31 = 1,691.93/x
  3. Step 3: Cross multiply
    2,887.18x = 3,984.31 × 1,691.93
  4. Step 4: Simplify right side
    2,887.18x = 6,741,149.47
  5. Step 5: Solve for x
    x = 6,741,149.47/2,887.18
  6. Step 6: Final answer
    x = 2,334.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.