Home / 3,234.40-4,853.44-2,139.28

Finding the Fourth Proportional to 3,234.40, 4,853.44 and 2,139.28

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Solution

The fourth proportional to 3,234.40, 4,853.44 and 2,139.28 is: 3,210.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,234.40 : 4,853.44 = 2,139.28 : x
  2. Step 2: Convert to fraction form
    3,234.40/4,853.44 = 2,139.28/x
  3. Step 3: Cross multiply
    3,234.40x = 4,853.44 × 2,139.28
  4. Step 4: Simplify right side
    3,234.40x = 10,382,867.12
  5. Step 5: Solve for x
    x = 10,382,867.12/3,234.40
  6. Step 6: Final answer
    x = 3,210.14

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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.