Home / 5,470.20-8,205.30-1,772.55

Finding the Fourth Proportional to 5,470.20, 8,205.30 and 1,772.55

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Solution

The fourth proportional to 5,470.20, 8,205.30 and 1,772.55 is: 2,658.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,470.20 : 8,205.30 = 1,772.55 : x
  2. Step 2: Convert to fraction form
    5,470.20/8,205.30 = 1,772.55/x
  3. Step 3: Cross multiply
    5,470.20x = 8,205.30 × 1,772.55
  4. Step 4: Simplify right side
    5,470.20x = 14,544,304.52
  5. Step 5: Solve for x
    x = 14,544,304.52/5,470.20
  6. Step 6: Final answer
    x = 2,658.83

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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.