Home / 7,919.73-10,922.49-4,891.19

Finding the Fourth Proportional to 7,919.73, 10,922.49 and 4,891.19

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Solution

The fourth proportional to 7,919.73, 10,922.49 and 4,891.19 is: 6,745.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.73 : 10,922.49 = 4,891.19 : x
  2. Step 2: Convert to fraction form
    7,919.73/10,922.49 = 4,891.19/x
  3. Step 3: Cross multiply
    7,919.73x = 10,922.49 × 4,891.19
  4. Step 4: Simplify right side
    7,919.73x = 53,423,973.86
  5. Step 5: Solve for x
    x = 53,423,973.86/7,919.73
  6. Step 6: Final answer
    x = 6,745.68

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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.