Home / 3,728.29-5,144.93-2,049.70

Finding the Fourth Proportional to 3,728.29, 5,144.93 and 2,049.70

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Solution

The fourth proportional to 3,728.29, 5,144.93 and 2,049.70 is: 2,828.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,728.29 : 5,144.93 = 2,049.70 : x
  2. Step 2: Convert to fraction form
    3,728.29/5,144.93 = 2,049.70/x
  3. Step 3: Cross multiply
    3,728.29x = 5,144.93 × 2,049.70
  4. Step 4: Simplify right side
    3,728.29x = 10,545,555.28
  5. Step 5: Solve for x
    x = 10,545,555.28/3,728.29
  6. Step 6: Final answer
    x = 2,828.53

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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.