Home / 1,839.28-2,750.40-1,347.20

Finding the Fourth Proportional to 1,839.28, 2,750.40 and 1,347.20

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Solution

The fourth proportional to 1,839.28, 2,750.40 and 1,347.20 is: 2,014.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,839.28 : 2,750.40 = 1,347.20 : x
  2. Step 2: Convert to fraction form
    1,839.28/2,750.40 = 1,347.20/x
  3. Step 3: Cross multiply
    1,839.28x = 2,750.40 × 1,347.20
  4. Step 4: Simplify right side
    1,839.28x = 3,705,338.88
  5. Step 5: Solve for x
    x = 3,705,338.88/1,839.28
  6. Step 6: Final answer
    x = 2,014.56

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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.