Home / 5,010.31-6,912.98-3,239.78

Finding the Fourth Proportional to 5,010.31, 6,912.98 and 3,239.78

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Solution

The fourth proportional to 5,010.31, 6,912.98 and 3,239.78 is: 4,470.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,010.31 : 6,912.98 = 3,239.78 : x
  2. Step 2: Convert to fraction form
    5,010.31/6,912.98 = 3,239.78/x
  3. Step 3: Cross multiply
    5,010.31x = 6,912.98 × 3,239.78
  4. Step 4: Simplify right side
    5,010.31x = 22,396,551.63
  5. Step 5: Solve for x
    x = 22,396,551.63/5,010.31
  6. Step 6: Final answer
    x = 4,470.10

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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.