Home / 5,221.56-7,205.96-2,983.80

Finding the Fourth Proportional to 5,221.56, 7,205.96 and 2,983.80

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Solution

The fourth proportional to 5,221.56, 7,205.96 and 2,983.80 is: 4,117.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.56 : 7,205.96 = 2,983.80 : x
  2. Step 2: Convert to fraction form
    5,221.56/7,205.96 = 2,983.80/x
  3. Step 3: Cross multiply
    5,221.56x = 7,205.96 × 2,983.80
  4. Step 4: Simplify right side
    5,221.56x = 21,501,143.45
  5. Step 5: Solve for x
    x = 21,501,143.45/5,221.56
  6. Step 6: Final answer
    x = 4,117.76

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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.