Home / 5,145.44-7,100.76-3,049.12

Finding the Fourth Proportional to 5,145.44, 7,100.76 and 3,049.12

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Solution

The fourth proportional to 5,145.44, 7,100.76 and 3,049.12 is: 4,207.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.44 : 7,100.76 = 3,049.12 : x
  2. Step 2: Convert to fraction form
    5,145.44/7,100.76 = 3,049.12/x
  3. Step 3: Cross multiply
    5,145.44x = 7,100.76 × 3,049.12
  4. Step 4: Simplify right side
    5,145.44x = 21,651,069.33
  5. Step 5: Solve for x
    x = 21,651,069.33/5,145.44
  6. Step 6: Final answer
    x = 4,207.82

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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.