Home / 2,748.22-3,788.85-1,960.90

Finding the Fourth Proportional to 2,748.22, 3,788.85 and 1,960.90

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Solution

The fourth proportional to 2,748.22, 3,788.85 and 1,960.90 is: 2,703.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,748.22 : 3,788.85 = 1,960.90 : x
  2. Step 2: Convert to fraction form
    2,748.22/3,788.85 = 1,960.90/x
  3. Step 3: Cross multiply
    2,748.22x = 3,788.85 × 1,960.90
  4. Step 4: Simplify right side
    2,748.22x = 7,429,555.97
  5. Step 5: Solve for x
    x = 7,429,555.97/2,748.22
  6. Step 6: Final answer
    x = 2,703.41

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1.5x scale

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.