Home / 2,239.68-3,355.52-1,911.68

Finding the Fourth Proportional to 2,239.68, 3,355.52 and 1,911.68

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Solution

The fourth proportional to 2,239.68, 3,355.52 and 1,911.68 is: 2,864.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.68 : 3,355.52 = 1,911.68 : x
  2. Step 2: Convert to fraction form
    2,239.68/3,355.52 = 1,911.68/x
  3. Step 3: Cross multiply
    2,239.68x = 3,355.52 × 1,911.68
  4. Step 4: Simplify right side
    2,239.68x = 6,414,680.47
  5. Step 5: Solve for x
    x = 6,414,680.47/2,239.68
  6. Step 6: Final answer
    x = 2,864.11

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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.