Home / 4,754.80-7,119.40-3,449.20

Finding the Fourth Proportional to 4,754.80, 7,119.40 and 3,449.20

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Solution

The fourth proportional to 4,754.80, 7,119.40 and 3,449.20 is: 5,164.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,754.80 : 7,119.40 = 3,449.20 : x
  2. Step 2: Convert to fraction form
    4,754.80/7,119.40 = 3,449.20/x
  3. Step 3: Cross multiply
    4,754.80x = 7,119.40 × 3,449.20
  4. Step 4: Simplify right side
    4,754.80x = 24,556,234.48
  5. Step 5: Solve for x
    x = 24,556,234.48/4,754.80
  6. Step 6: Final answer
    x = 5,164.51

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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.