Home / 4,295.20-6,441.12-1,520.80

Finding the Fourth Proportional to 4,295.20, 6,441.12 and 1,520.80

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Solution

The fourth proportional to 4,295.20, 6,441.12 and 1,520.80 is: 2,280.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,295.20 : 6,441.12 = 1,520.80 : x
  2. Step 2: Convert to fraction form
    4,295.20/6,441.12 = 1,520.80/x
  3. Step 3: Cross multiply
    4,295.20x = 6,441.12 × 1,520.80
  4. Step 4: Simplify right side
    4,295.20x = 9,795,655.30
  5. Step 5: Solve for x
    x = 9,795,655.30/4,295.20
  6. Step 6: Final answer
    x = 2,280.61

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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.