Home / 4,265.20-6,399.60-2,318.80

Finding the Fourth Proportional to 4,265.20, 6,399.60 and 2,318.80

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Solution

The fourth proportional to 4,265.20, 6,399.60 and 2,318.80 is: 3,479.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,265.20 : 6,399.60 = 2,318.80 : x
  2. Step 2: Convert to fraction form
    4,265.20/6,399.60 = 2,318.80/x
  3. Step 3: Cross multiply
    4,265.20x = 6,399.60 × 2,318.80
  4. Step 4: Simplify right side
    4,265.20x = 14,839,392.48
  5. Step 5: Solve for x
    x = 14,839,392.48/4,265.20
  6. Step 6: Final answer
    x = 3,479.18

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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.