Home / 5,231.17-7,218.98-3,135.29

Finding the Fourth Proportional to 5,231.17, 7,218.98 and 3,135.29

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Solution

The fourth proportional to 5,231.17, 7,218.98 and 3,135.29 is: 4,326.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.17 : 7,218.98 = 3,135.29 : x
  2. Step 2: Convert to fraction form
    5,231.17/7,218.98 = 3,135.29/x
  3. Step 3: Cross multiply
    5,231.17x = 7,218.98 × 3,135.29
  4. Step 4: Simplify right side
    5,231.17x = 22,633,580.13
  5. Step 5: Solve for x
    x = 22,633,580.13/5,231.17
  6. Step 6: Final answer
    x = 4,326.68

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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.