Home / 2,654.20-3,980.22-1,192.96

Finding the Fourth Proportional to 2,654.20, 3,980.22 and 1,192.96

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Solution

The fourth proportional to 2,654.20, 3,980.22 and 1,192.96 is: 1,788.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,654.20 : 3,980.22 = 1,192.96 : x
  2. Step 2: Convert to fraction form
    2,654.20/3,980.22 = 1,192.96/x
  3. Step 3: Cross multiply
    2,654.20x = 3,980.22 × 1,192.96
  4. Step 4: Simplify right side
    2,654.20x = 4,748,243.25
  5. Step 5: Solve for x
    x = 4,748,243.25/2,654.20
  6. Step 6: Final answer
    x = 1,788.95

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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.