Home / 5,427.71-7,489.98-3,069.80

Finding the Fourth Proportional to 5,427.71, 7,489.98 and 3,069.80

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Solution

The fourth proportional to 5,427.71, 7,489.98 and 3,069.80 is: 4,236.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.71 : 7,489.98 = 3,069.80 : x
  2. Step 2: Convert to fraction form
    5,427.71/7,489.98 = 3,069.80/x
  3. Step 3: Cross multiply
    5,427.71x = 7,489.98 × 3,069.80
  4. Step 4: Simplify right side
    5,427.71x = 22,992,759.33
  5. Step 5: Solve for x
    x = 22,992,759.33/5,427.71
  6. Step 6: Final answer
    x = 4,236.18

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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.