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Finding the Fourth Proportional to 3,001.92, 4,505.16 and 1,961.64

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Solution

The fourth proportional to 3,001.92, 4,505.16 and 1,961.64 is: 2,943.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,001.92 : 4,505.16 = 1,961.64 : x
  2. Step 2: Convert to fraction form
    3,001.92/4,505.16 = 1,961.64/x
  3. Step 3: Cross multiply
    3,001.92x = 4,505.16 × 1,961.64
  4. Step 4: Simplify right side
    3,001.92x = 8,837,502.06
  5. Step 5: Solve for x
    x = 8,837,502.06/3,001.92
  6. Step 6: Final answer
    x = 2,943.95

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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.