Home / 3,540.40-5,304.20-2,887.60

Finding the Fourth Proportional to 3,540.40, 5,304.20 and 2,887.60

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Solution

The fourth proportional to 3,540.40, 5,304.20 and 2,887.60 is: 4,326.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.40 : 5,304.20 = 2,887.60 : x
  2. Step 2: Convert to fraction form
    3,540.40/5,304.20 = 2,887.60/x
  3. Step 3: Cross multiply
    3,540.40x = 5,304.20 × 2,887.60
  4. Step 4: Simplify right side
    3,540.40x = 15,316,407.92
  5. Step 5: Solve for x
    x = 15,316,407.92/3,540.40
  6. Step 6: Final answer
    x = 4,326.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.