Home / 4,919.06-6,788.10-2,680.88

Finding the Fourth Proportional to 4,919.06, 6,788.10 and 2,680.88

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Solution

The fourth proportional to 4,919.06, 6,788.10 and 2,680.88 is: 3,699.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.06 : 6,788.10 = 2,680.88 : x
  2. Step 2: Convert to fraction form
    4,919.06/6,788.10 = 2,680.88/x
  3. Step 3: Cross multiply
    4,919.06x = 6,788.10 × 2,680.88
  4. Step 4: Simplify right side
    4,919.06x = 18,198,085.09
  5. Step 5: Solve for x
    x = 18,198,085.09/4,919.06
  6. Step 6: Final answer
    x = 3,699.51

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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.