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Finding the Fourth Proportional to 2,885.92, 3,983.04 and 2,144.80

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Solution

The fourth proportional to 2,885.92, 3,983.04 and 2,144.80 is: 2,960.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,885.92 : 3,983.04 = 2,144.80 : x
  2. Step 2: Convert to fraction form
    2,885.92/3,983.04 = 2,144.80/x
  3. Step 3: Cross multiply
    2,885.92x = 3,983.04 × 2,144.80
  4. Step 4: Simplify right side
    2,885.92x = 8,542,824.19
  5. Step 5: Solve for x
    x = 8,542,824.19/2,885.92
  6. Step 6: Final answer
    x = 2,960.17

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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.