Home / 3,214.81-4,822.82-2,177.20

Finding the Fourth Proportional to 3,214.81, 4,822.82 and 2,177.20

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Solution

The fourth proportional to 3,214.81, 4,822.82 and 2,177.20 is: 3,266.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,214.81 : 4,822.82 = 2,177.20 : x
  2. Step 2: Convert to fraction form
    3,214.81/4,822.82 = 2,177.20/x
  3. Step 3: Cross multiply
    3,214.81x = 4,822.82 × 2,177.20
  4. Step 4: Simplify right side
    3,214.81x = 10,500,243.70
  5. Step 5: Solve for x
    x = 10,500,243.70/3,214.81
  6. Step 6: Final answer
    x = 3,266.21

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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.