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Finding the Fourth Proportional to 2,882.72, 4,320.43 and 1,955.97

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Solution

The fourth proportional to 2,882.72, 4,320.43 and 1,955.97 is: 2,931.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,882.72 : 4,320.43 = 1,955.97 : x
  2. Step 2: Convert to fraction form
    2,882.72/4,320.43 = 1,955.97/x
  3. Step 3: Cross multiply
    2,882.72x = 4,320.43 × 1,955.97
  4. Step 4: Simplify right side
    2,882.72x = 8,450,626.58
  5. Step 5: Solve for x
    x = 8,450,626.58/2,882.72
  6. Step 6: Final answer
    x = 2,931.47

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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.