Home / 5,221.97-7,206.70-2,983.79

Finding the Fourth Proportional to 5,221.97, 7,206.70 and 2,983.79

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Solution

The fourth proportional to 5,221.97, 7,206.70 and 2,983.79 is: 4,117.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.97 : 7,206.70 = 2,983.79 : x
  2. Step 2: Convert to fraction form
    5,221.97/7,206.70 = 2,983.79/x
  3. Step 3: Cross multiply
    5,221.97x = 7,206.70 × 2,983.79
  4. Step 4: Simplify right side
    5,221.97x = 21,503,292.22
  5. Step 5: Solve for x
    x = 21,503,292.22/5,221.97
  6. Step 6: Final answer
    x = 4,117.85

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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.