Home / 5,034.80-7,555.16-2,112.88

Finding the Fourth Proportional to 5,034.80, 7,555.16 and 2,112.88

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Solution

The fourth proportional to 5,034.80, 7,555.16 and 2,112.88 is: 3,170.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,034.80 : 7,555.16 = 2,112.88 : x
  2. Step 2: Convert to fraction form
    5,034.80/7,555.16 = 2,112.88/x
  3. Step 3: Cross multiply
    5,034.80x = 7,555.16 × 2,112.88
  4. Step 4: Simplify right side
    5,034.80x = 15,963,146.46
  5. Step 5: Solve for x
    x = 15,963,146.46/5,034.80
  6. Step 6: Final answer
    x = 3,170.56

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1.5x scale

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.