Home / 3,261.12-4,890.45-1,180.61

Finding the Fourth Proportional to 3,261.12, 4,890.45 and 1,180.61

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Solution

The fourth proportional to 3,261.12, 4,890.45 and 1,180.61 is: 1,770.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261.12 : 4,890.45 = 1,180.61 : x
  2. Step 2: Convert to fraction form
    3,261.12/4,890.45 = 1,180.61/x
  3. Step 3: Cross multiply
    3,261.12x = 4,890.45 × 1,180.61
  4. Step 4: Simplify right side
    3,261.12x = 5,773,714.17
  5. Step 5: Solve for x
    x = 5,773,714.17/3,261.12
  6. Step 6: Final answer
    x = 1,770.47

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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.