Home / 5,121.57-7,052.90-4,449.07

Finding the Fourth Proportional to 5,121.57, 7,052.90 and 4,449.07

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Solution

The fourth proportional to 5,121.57, 7,052.90 and 4,449.07 is: 6,126.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.57 : 7,052.90 = 4,449.07 : x
  2. Step 2: Convert to fraction form
    5,121.57/7,052.90 = 4,449.07/x
  3. Step 3: Cross multiply
    5,121.57x = 7,052.90 × 4,449.07
  4. Step 4: Simplify right side
    5,121.57x = 31,378,805.93
  5. Step 5: Solve for x
    x = 31,378,805.93/5,121.57
  6. Step 6: Final answer
    x = 6,126.79

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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.