Home / 2,691.31-4,035.94-1,047.64

Finding the Fourth Proportional to 2,691.31, 4,035.94 and 1,047.64

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Solution

The fourth proportional to 2,691.31, 4,035.94 and 1,047.64 is: 1,571.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.31 : 4,035.94 = 1,047.64 : x
  2. Step 2: Convert to fraction form
    2,691.31/4,035.94 = 1,047.64/x
  3. Step 3: Cross multiply
    2,691.31x = 4,035.94 × 1,047.64
  4. Step 4: Simplify right side
    2,691.31x = 4,228,212.18
  5. Step 5: Solve for x
    x = 4,228,212.18/2,691.31
  6. Step 6: Final answer
    x = 1,571.06

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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.