Home / 3,267.40-4,895.70-2,171.20

Finding the Fourth Proportional to 3,267.40, 4,895.70 and 2,171.20

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Solution

The fourth proportional to 3,267.40, 4,895.70 and 2,171.20 is: 3,253.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,267.40 : 4,895.70 = 2,171.20 : x
  2. Step 2: Convert to fraction form
    3,267.40/4,895.70 = 2,171.20/x
  3. Step 3: Cross multiply
    3,267.40x = 4,895.70 × 2,171.20
  4. Step 4: Simplify right side
    3,267.40x = 10,629,543.84
  5. Step 5: Solve for x
    x = 10,629,543.84/3,267.40
  6. Step 6: Final answer
    x = 3,253.21

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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.