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Finding the Fourth Proportional to 4,414.87, 6,620.55 and 1,947.94

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Solution

The fourth proportional to 4,414.87, 6,620.55 and 1,947.94 is: 2,921.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,414.87 : 6,620.55 = 1,947.94 : x
  2. Step 2: Convert to fraction form
    4,414.87/6,620.55 = 1,947.94/x
  3. Step 3: Cross multiply
    4,414.87x = 6,620.55 × 1,947.94
  4. Step 4: Simplify right side
    4,414.87x = 12,896,410.31
  5. Step 5: Solve for x
    x = 12,896,410.31/4,414.87
  6. Step 6: Final answer
    x = 2,921.13

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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.