Home / 4,960.80-7,439.85-1,449.99

Finding the Fourth Proportional to 4,960.80, 7,439.85 and 1,449.99

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Solution

The fourth proportional to 4,960.80, 7,439.85 and 1,449.99 is: 2,174.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,960.80 : 7,439.85 = 1,449.99 : x
  2. Step 2: Convert to fraction form
    4,960.80/7,439.85 = 1,449.99/x
  3. Step 3: Cross multiply
    4,960.80x = 7,439.85 × 1,449.99
  4. Step 4: Simplify right side
    4,960.80x = 10,787,708.10
  5. Step 5: Solve for x
    x = 10,787,708.10/4,960.80
  6. Step 6: Final answer
    x = 2,174.59

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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.