Home / 3,917.92-5,875.22-2,685.70

Finding the Fourth Proportional to 3,917.92, 5,875.22 and 2,685.70

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Solution

The fourth proportional to 3,917.92, 5,875.22 and 2,685.70 is: 4,027.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,917.92 : 5,875.22 = 2,685.70 : x
  2. Step 2: Convert to fraction form
    3,917.92/5,875.22 = 2,685.70/x
  3. Step 3: Cross multiply
    3,917.92x = 5,875.22 × 2,685.70
  4. Step 4: Simplify right side
    3,917.92x = 15,779,078.35
  5. Step 5: Solve for x
    x = 15,779,078.35/3,917.92
  6. Step 6: Final answer
    x = 4,027.41

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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.