Home / 2,738.40-4,103.28-1,763.70

Finding the Fourth Proportional to 2,738.40, 4,103.28 and 1,763.70

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Solution

The fourth proportional to 2,738.40, 4,103.28 and 1,763.70 is: 2,642.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,738.40 : 4,103.28 = 1,763.70 : x
  2. Step 2: Convert to fraction form
    2,738.40/4,103.28 = 1,763.70/x
  3. Step 3: Cross multiply
    2,738.40x = 4,103.28 × 1,763.70
  4. Step 4: Simplify right side
    2,738.40x = 7,236,954.94
  5. Step 5: Solve for x
    x = 7,236,954.94/2,738.40
  6. Step 6: Final answer
    x = 2,642.77

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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.