Home / 2,765.62-3,818.04-2,166.88

Finding the Fourth Proportional to 2,765.62, 3,818.04 and 2,166.88

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Solution

The fourth proportional to 2,765.62, 3,818.04 and 2,166.88 is: 2,991.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,765.62 : 3,818.04 = 2,166.88 : x
  2. Step 2: Convert to fraction form
    2,765.62/3,818.04 = 2,166.88/x
  3. Step 3: Cross multiply
    2,765.62x = 3,818.04 × 2,166.88
  4. Step 4: Simplify right side
    2,765.62x = 8,273,234.52
  5. Step 5: Solve for x
    x = 8,273,234.52/2,765.62
  6. Step 6: Final answer
    x = 2,991.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.