Home / 5,488.20-8,234.33-1,790.55

Finding the Fourth Proportional to 5,488.20, 8,234.33 and 1,790.55

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Solution

The fourth proportional to 5,488.20, 8,234.33 and 1,790.55 is: 2,686.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,488.20 : 8,234.33 = 1,790.55 : x
  2. Step 2: Convert to fraction form
    5,488.20/8,234.33 = 1,790.55/x
  3. Step 3: Cross multiply
    5,488.20x = 8,234.33 × 1,790.55
  4. Step 4: Simplify right side
    5,488.20x = 14,743,970.63
  5. Step 5: Solve for x
    x = 14,743,970.63/5,488.20
  6. Step 6: Final answer
    x = 2,686.49

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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.