Home / 5,160.45-7,124.55-3,272.34

Finding the Fourth Proportional to 5,160.45, 7,124.55 and 3,272.34

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Solution

The fourth proportional to 5,160.45, 7,124.55 and 3,272.34 is: 4,517.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160.45 : 7,124.55 = 3,272.34 : x
  2. Step 2: Convert to fraction form
    5,160.45/7,124.55 = 3,272.34/x
  3. Step 3: Cross multiply
    5,160.45x = 7,124.55 × 3,272.34
  4. Step 4: Simplify right side
    5,160.45x = 23,313,949.95
  5. Step 5: Solve for x
    x = 23,313,949.95/5,160.45
  6. Step 6: Final answer
    x = 4,517.81

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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.