Home / 1,955.20-2,932.80-800.68

Finding the Fourth Proportional to 1,955.20, 2,932.80 and 800.68

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Solution

The fourth proportional to 1,955.20, 2,932.80 and 800.68 is: 1,201.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955.20 : 2,932.80 = 800.68 : x
  2. Step 2: Convert to fraction form
    1,955.20/2,932.80 = 800.68/x
  3. Step 3: Cross multiply
    1,955.20x = 2,932.80 × 800.68
  4. Step 4: Simplify right side
    1,955.20x = 2,348,234.30
  5. Step 5: Solve for x
    x = 2,348,234.30/1,955.20
  6. Step 6: Final answer
    x = 1,201.02

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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.