Home / 5,220.82-7,205.25-2,983.06

Finding the Fourth Proportional to 5,220.82, 7,205.25 and 2,983.06

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Solution

The fourth proportional to 5,220.82, 7,205.25 and 2,983.06 is: 4,116.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.82 : 7,205.25 = 2,983.06 : x
  2. Step 2: Convert to fraction form
    5,220.82/7,205.25 = 2,983.06/x
  3. Step 3: Cross multiply
    5,220.82x = 7,205.25 × 2,983.06
  4. Step 4: Simplify right side
    5,220.82x = 21,493,693.07
  5. Step 5: Solve for x
    x = 21,493,693.07/5,220.82
  6. Step 6: Final answer
    x = 4,116.92

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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.