Home / 3,110.92-4,666.56-919.69

Finding the Fourth Proportional to 3,110.92, 4,666.56 and 919.69

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Solution

The fourth proportional to 3,110.92, 4,666.56 and 919.69 is: 1,379.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.92 : 4,666.56 = 919.69 : x
  2. Step 2: Convert to fraction form
    3,110.92/4,666.56 = 919.69/x
  3. Step 3: Cross multiply
    3,110.92x = 4,666.56 × 919.69
  4. Step 4: Simplify right side
    3,110.92x = 4,291,788.57
  5. Step 5: Solve for x
    x = 4,291,788.57/3,110.92
  6. Step 6: Final answer
    x = 1,379.59

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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.