Home / 3,281.40-4,918.38-2,049.36

Finding the Fourth Proportional to 3,281.40, 4,918.38 and 2,049.36

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Solution

The fourth proportional to 3,281.40, 4,918.38 and 2,049.36 is: 3,071.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,281.40 : 4,918.38 = 2,049.36 : x
  2. Step 2: Convert to fraction form
    3,281.40/4,918.38 = 2,049.36/x
  3. Step 3: Cross multiply
    3,281.40x = 4,918.38 × 2,049.36
  4. Step 4: Simplify right side
    3,281.40x = 10,079,531.24
  5. Step 5: Solve for x
    x = 10,079,531.24/3,281.40
  6. Step 6: Final answer
    x = 3,071.72

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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.