Home / 3,240.56-4,860.54-1,391.34

Finding the Fourth Proportional to 3,240.56, 4,860.54 and 1,391.34

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Solution

The fourth proportional to 3,240.56, 4,860.54 and 1,391.34 is: 2,086.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240.56 : 4,860.54 = 1,391.34 : x
  2. Step 2: Convert to fraction form
    3,240.56/4,860.54 = 1,391.34/x
  3. Step 3: Cross multiply
    3,240.56x = 4,860.54 × 1,391.34
  4. Step 4: Simplify right side
    3,240.56x = 6,762,663.72
  5. Step 5: Solve for x
    x = 6,762,663.72/3,240.56
  6. Step 6: Final answer
    x = 2,086.88

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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.