Home / 3,427.44-5,139.66-1,374

Finding the Fourth Proportional to 3,427.44, 5,139.66 and 1,374

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Solution

The fourth proportional to 3,427.44, 5,139.66 and 1,374 is: 2,060.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.44 : 5,139.66 = 1,374 : x
  2. Step 2: Convert to fraction form
    3,427.44/5,139.66 = 1,374/x
  3. Step 3: Cross multiply
    3,427.44x = 5,139.66 × 1,374
  4. Step 4: Simplify right side
    3,427.44x = 7,061,892.84
  5. Step 5: Solve for x
    x = 7,061,892.84/3,427.44
  6. Step 6: Final answer
    x = 2,060.40

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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.