Home / 4,843.12-7,251.72-3,981.28

Finding the Fourth Proportional to 4,843.12, 7,251.72 and 3,981.28

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Solution

The fourth proportional to 4,843.12, 7,251.72 and 3,981.28 is: 5,961.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,843.12 : 7,251.72 = 3,981.28 : x
  2. Step 2: Convert to fraction form
    4,843.12/7,251.72 = 3,981.28/x
  3. Step 3: Cross multiply
    4,843.12x = 7,251.72 × 3,981.28
  4. Step 4: Simplify right side
    4,843.12x = 28,871,127.80
  5. Step 5: Solve for x
    x = 28,871,127.80/4,843.12
  6. Step 6: Final answer
    x = 5,961.27

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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.