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Finding the Fourth Proportional to 2,855.97, 4,285.51 and 1,295.87

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Solution

The fourth proportional to 2,855.97, 4,285.51 and 1,295.87 is: 1,944.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,855.97 : 4,285.51 = 1,295.87 : x
  2. Step 2: Convert to fraction form
    2,855.97/4,285.51 = 1,295.87/x
  3. Step 3: Cross multiply
    2,855.97x = 4,285.51 × 1,295.87
  4. Step 4: Simplify right side
    2,855.97x = 5,553,439.18
  5. Step 5: Solve for x
    x = 5,553,439.18/2,855.97
  6. Step 6: Final answer
    x = 1,944.50

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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.