Home / 3,220.29-4,821.31-2,047.38

Finding the Fourth Proportional to 3,220.29, 4,821.31 and 2,047.38

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Solution

The fourth proportional to 3,220.29, 4,821.31 and 2,047.38 is: 3,065.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.29 : 4,821.31 = 2,047.38 : x
  2. Step 2: Convert to fraction form
    3,220.29/4,821.31 = 2,047.38/x
  3. Step 3: Cross multiply
    3,220.29x = 4,821.31 × 2,047.38
  4. Step 4: Simplify right side
    3,220.29x = 9,871,053.67
  5. Step 5: Solve for x
    x = 9,871,053.67/3,220.29
  6. Step 6: Final answer
    x = 3,065.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.