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Finding the Fourth Proportional to 3,342.11, 5,013.49 and 876.95

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Solution

The fourth proportional to 3,342.11, 5,013.49 and 876.95 is: 1,315.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,342.11 : 5,013.49 = 876.95 : x
  2. Step 2: Convert to fraction form
    3,342.11/5,013.49 = 876.95/x
  3. Step 3: Cross multiply
    3,342.11x = 5,013.49 × 876.95
  4. Step 4: Simplify right side
    3,342.11x = 4,396,580.06
  5. Step 5: Solve for x
    x = 4,396,580.06/3,342.11
  6. Step 6: Final answer
    x = 1,315.51

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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.