Home / 5,212.20-7,187.01-3,320.76

Finding the Fourth Proportional to 5,212.20, 7,187.01 and 3,320.76

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Solution

The fourth proportional to 5,212.20, 7,187.01 and 3,320.76 is: 4,578.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.20 : 7,187.01 = 3,320.76 : x
  2. Step 2: Convert to fraction form
    5,212.20/7,187.01 = 3,320.76/x
  3. Step 3: Cross multiply
    5,212.20x = 7,187.01 × 3,320.76
  4. Step 4: Simplify right side
    5,212.20x = 23,866,335.33
  5. Step 5: Solve for x
    x = 23,866,335.33/5,212.20
  6. Step 6: Final answer
    x = 4,578.94

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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.