Home / 3,940.48-5,911.04-2,209.92

Finding the Fourth Proportional to 3,940.48, 5,911.04 and 2,209.92

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Solution

The fourth proportional to 3,940.48, 5,911.04 and 2,209.92 is: 3,315.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.48 : 5,911.04 = 2,209.92 : x
  2. Step 2: Convert to fraction form
    3,940.48/5,911.04 = 2,209.92/x
  3. Step 3: Cross multiply
    3,940.48x = 5,911.04 × 2,209.92
  4. Step 4: Simplify right side
    3,940.48x = 13,062,925.52
  5. Step 5: Solve for x
    x = 13,062,925.52/3,940.48
  6. Step 6: Final answer
    x = 3,315.06

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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.