Home / 5,427.39-7,489.80-3,069.48

Finding the Fourth Proportional to 5,427.39, 7,489.80 and 3,069.48

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Solution

The fourth proportional to 5,427.39, 7,489.80 and 3,069.48 is: 4,235.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.39 : 7,489.80 = 3,069.48 : x
  2. Step 2: Convert to fraction form
    5,427.39/7,489.80 = 3,069.48/x
  3. Step 3: Cross multiply
    5,427.39x = 7,489.80 × 3,069.48
  4. Step 4: Simplify right side
    5,427.39x = 22,989,791.30
  5. Step 5: Solve for x
    x = 22,989,791.30/5,427.39
  6. Step 6: Final answer
    x = 4,235.88

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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.