Home / 5,140.56-7,711.80-3,293.52

Finding the Fourth Proportional to 5,140.56, 7,711.80 and 3,293.52

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Solution

The fourth proportional to 5,140.56, 7,711.80 and 3,293.52 is: 4,940.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.56 : 7,711.80 = 3,293.52 : x
  2. Step 2: Convert to fraction form
    5,140.56/7,711.80 = 3,293.52/x
  3. Step 3: Cross multiply
    5,140.56x = 7,711.80 × 3,293.52
  4. Step 4: Simplify right side
    5,140.56x = 25,398,967.54
  5. Step 5: Solve for x
    x = 25,398,967.54/5,140.56
  6. Step 6: Final answer
    x = 4,940.90

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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.