Home / 2,890.32-4,331.32-2,238

Finding the Fourth Proportional to 2,890.32, 4,331.32 and 2,238

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Solution

The fourth proportional to 2,890.32, 4,331.32 and 2,238 is: 3,353.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890.32 : 4,331.32 = 2,238 : x
  2. Step 2: Convert to fraction form
    2,890.32/4,331.32 = 2,238/x
  3. Step 3: Cross multiply
    2,890.32x = 4,331.32 × 2,238
  4. Step 4: Simplify right side
    2,890.32x = 9,693,494.16
  5. Step 5: Solve for x
    x = 9,693,494.16/2,890.32
  6. Step 6: Final answer
    x = 3,353.78

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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.