Home / 3,188.85-4,398.81-2,007.87

Finding the Fourth Proportional to 3,188.85, 4,398.81 and 2,007.87

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Solution

The fourth proportional to 3,188.85, 4,398.81 and 2,007.87 is: 2,769.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.85 : 4,398.81 = 2,007.87 : x
  2. Step 2: Convert to fraction form
    3,188.85/4,398.81 = 2,007.87/x
  3. Step 3: Cross multiply
    3,188.85x = 4,398.81 × 2,007.87
  4. Step 4: Simplify right side
    3,188.85x = 8,832,238.63
  5. Step 5: Solve for x
    x = 8,832,238.63/3,188.85
  6. Step 6: Final answer
    x = 2,769.73

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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.