Home / 5,156.73-7,728.13-3,763.53

Finding the Fourth Proportional to 5,156.73, 7,728.13 and 3,763.53

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Solution

The fourth proportional to 5,156.73, 7,728.13 and 3,763.53 is: 5,640.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,156.73 : 7,728.13 = 3,763.53 : x
  2. Step 2: Convert to fraction form
    5,156.73/7,728.13 = 3,763.53/x
  3. Step 3: Cross multiply
    5,156.73x = 7,728.13 × 3,763.53
  4. Step 4: Simplify right side
    5,156.73x = 29,085,049.10
  5. Step 5: Solve for x
    x = 29,085,049.10/5,156.73
  6. Step 6: Final answer
    x = 5,640.21

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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.