Home / 3,856.32-5,318.40-3,110

Finding the Fourth Proportional to 3,856.32, 5,318.40 and 3,110

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Solution

The fourth proportional to 3,856.32, 5,318.40 and 3,110 is: 4,289.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856.32 : 5,318.40 = 3,110 : x
  2. Step 2: Convert to fraction form
    3,856.32/5,318.40 = 3,110/x
  3. Step 3: Cross multiply
    3,856.32x = 5,318.40 × 3,110
  4. Step 4: Simplify right side
    3,856.32x = 16,540,224.00
  5. Step 5: Solve for x
    x = 16,540,224.00/3,856.32
  6. Step 6: Final answer
    x = 4,289.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.