Home / 4,919.05-6,788.31-2,680.95

Finding the Fourth Proportional to 4,919.05, 6,788.31 and 2,680.95

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Solution

The fourth proportional to 4,919.05, 6,788.31 and 2,680.95 is: 3,699.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.05 : 6,788.31 = 2,680.95 : x
  2. Step 2: Convert to fraction form
    4,919.05/6,788.31 = 2,680.95/x
  3. Step 3: Cross multiply
    4,919.05x = 6,788.31 × 2,680.95
  4. Step 4: Simplify right side
    4,919.05x = 18,199,119.69
  5. Step 5: Solve for x
    x = 18,199,119.69/4,919.05
  6. Step 6: Final answer
    x = 3,699.72

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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.