Home / 5,161.30-7,122.84-2,922.88

Finding the Fourth Proportional to 5,161.30, 7,122.84 and 2,922.88

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Solution

The fourth proportional to 5,161.30, 7,122.84 and 2,922.88 is: 4,033.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,161.30 : 7,122.84 = 2,922.88 : x
  2. Step 2: Convert to fraction form
    5,161.30/7,122.84 = 2,922.88/x
  3. Step 3: Cross multiply
    5,161.30x = 7,122.84 × 2,922.88
  4. Step 4: Simplify right side
    5,161.30x = 20,819,206.58
  5. Step 5: Solve for x
    x = 20,819,206.58/5,161.30
  6. Step 6: Final answer
    x = 4,033.71

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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.