Home / 1,842.60-2,765.52-1,380.96

Finding the Fourth Proportional to 1,842.60, 2,765.52 and 1,380.96

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Solution

The fourth proportional to 1,842.60, 2,765.52 and 1,380.96 is: 2,072.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,842.60 : 2,765.52 = 1,380.96 : x
  2. Step 2: Convert to fraction form
    1,842.60/2,765.52 = 1,380.96/x
  3. Step 3: Cross multiply
    1,842.60x = 2,765.52 × 1,380.96
  4. Step 4: Simplify right side
    1,842.60x = 3,819,072.50
  5. Step 5: Solve for x
    x = 3,819,072.50/1,842.60
  6. Step 6: Final answer
    x = 2,072.65

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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.