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Finding the Fourth Proportional to 3,363.48, 4,641.86 and 1,947.62

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Solution

The fourth proportional to 3,363.48, 4,641.86 and 1,947.62 is: 2,687.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,363.48 : 4,641.86 = 1,947.62 : x
  2. Step 2: Convert to fraction form
    3,363.48/4,641.86 = 1,947.62/x
  3. Step 3: Cross multiply
    3,363.48x = 4,641.86 × 1,947.62
  4. Step 4: Simplify right side
    3,363.48x = 9,040,595.85
  5. Step 5: Solve for x
    x = 9,040,595.85/3,363.48
  6. Step 6: Final answer
    x = 2,687.87

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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.