Home / 5,261.31-7,257.38-3,135.38

Finding the Fourth Proportional to 5,261.31, 7,257.38 and 3,135.38

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Solution

The fourth proportional to 5,261.31, 7,257.38 and 3,135.38 is: 4,324.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,261.31 : 7,257.38 = 3,135.38 : x
  2. Step 2: Convert to fraction form
    5,261.31/7,257.38 = 3,135.38/x
  3. Step 3: Cross multiply
    5,261.31x = 7,257.38 × 3,135.38
  4. Step 4: Simplify right side
    5,261.31x = 22,754,592.14
  5. Step 5: Solve for x
    x = 22,754,592.14/5,261.31
  6. Step 6: Final answer
    x = 4,324.89

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1.5x scale

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.