Home / 5,112.39-7,052.88-3,222.48

Finding the Fourth Proportional to 5,112.39, 7,052.88 and 3,222.48

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Solution

The fourth proportional to 5,112.39, 7,052.88 and 3,222.48 is: 4,445.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112.39 : 7,052.88 = 3,222.48 : x
  2. Step 2: Convert to fraction form
    5,112.39/7,052.88 = 3,222.48/x
  3. Step 3: Cross multiply
    5,112.39x = 7,052.88 × 3,222.48
  4. Step 4: Simplify right side
    5,112.39x = 22,727,764.74
  5. Step 5: Solve for x
    x = 22,727,764.74/5,112.39
  6. Step 6: Final answer
    x = 4,445.62

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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.