Home / 3,188.65-4,400.34-1,791.40

Finding the Fourth Proportional to 3,188.65, 4,400.34 and 1,791.40

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Solution

The fourth proportional to 3,188.65, 4,400.34 and 1,791.40 is: 2,472.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.65 : 4,400.34 = 1,791.40 : x
  2. Step 2: Convert to fraction form
    3,188.65/4,400.34 = 1,791.40/x
  3. Step 3: Cross multiply
    3,188.65x = 4,400.34 × 1,791.40
  4. Step 4: Simplify right side
    3,188.65x = 7,882,769.08
  5. Step 5: Solve for x
    x = 7,882,769.08/3,188.65
  6. Step 6: Final answer
    x = 2,472.13

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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.