Home / 2,738.60-4,104.78-1,643.74

Finding the Fourth Proportional to 2,738.60, 4,104.78 and 1,643.74

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Solution

The fourth proportional to 2,738.60, 4,104.78 and 1,643.74 is: 2,463.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,738.60 : 4,104.78 = 1,643.74 : x
  2. Step 2: Convert to fraction form
    2,738.60/4,104.78 = 1,643.74/x
  3. Step 3: Cross multiply
    2,738.60x = 4,104.78 × 1,643.74
  4. Step 4: Simplify right side
    2,738.60x = 6,747,191.08
  5. Step 5: Solve for x
    x = 6,747,191.08/2,738.60
  6. Step 6: Final answer
    x = 2,463.74

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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.