Home / 2,748.12-3,788.94-2,305.05

Finding the Fourth Proportional to 2,748.12, 3,788.94 and 2,305.05

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Solution

The fourth proportional to 2,748.12, 3,788.94 and 2,305.05 is: 3,178.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,748.12 : 3,788.94 = 2,305.05 : x
  2. Step 2: Convert to fraction form
    2,748.12/3,788.94 = 2,305.05/x
  3. Step 3: Cross multiply
    2,748.12x = 3,788.94 × 2,305.05
  4. Step 4: Simplify right side
    2,748.12x = 8,733,696.15
  5. Step 5: Solve for x
    x = 8,733,696.15/2,748.12
  6. Step 6: Final answer
    x = 3,178.06

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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.