Home / 4,295.80-6,439.98-2,560.78

Finding the Fourth Proportional to 4,295.80, 6,439.98 and 2,560.78

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Solution

The fourth proportional to 4,295.80, 6,439.98 and 2,560.78 is: 3,838.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,295.80 : 6,439.98 = 2,560.78 : x
  2. Step 2: Convert to fraction form
    4,295.80/6,439.98 = 2,560.78/x
  3. Step 3: Cross multiply
    4,295.80x = 6,439.98 × 2,560.78
  4. Step 4: Simplify right side
    4,295.80x = 16,491,371.98
  5. Step 5: Solve for x
    x = 16,491,371.98/4,295.80
  6. Step 6: Final answer
    x = 3,838.95

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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.