Home / 1,765.40-2,440.92-1,546.76

Finding the Fourth Proportional to 1,765.40, 2,440.92 and 1,546.76

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Solution

The fourth proportional to 1,765.40, 2,440.92 and 1,546.76 is: 2,138.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,765.40 : 2,440.92 = 1,546.76 : x
  2. Step 2: Convert to fraction form
    1,765.40/2,440.92 = 1,546.76/x
  3. Step 3: Cross multiply
    1,765.40x = 2,440.92 × 1,546.76
  4. Step 4: Simplify right side
    1,765.40x = 3,775,517.42
  5. Step 5: Solve for x
    x = 3,775,517.42/1,765.40
  6. Step 6: Final answer
    x = 2,138.62

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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.