Home / 3,188.79-4,400.06-1,791.27

Finding the Fourth Proportional to 3,188.79, 4,400.06 and 1,791.27

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Solution

The fourth proportional to 3,188.79, 4,400.06 and 1,791.27 is: 2,471.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.79 : 4,400.06 = 1,791.27 : x
  2. Step 2: Convert to fraction form
    3,188.79/4,400.06 = 1,791.27/x
  3. Step 3: Cross multiply
    3,188.79x = 4,400.06 × 1,791.27
  4. Step 4: Simplify right side
    3,188.79x = 7,881,686.52
  5. Step 5: Solve for x
    x = 7,881,686.52/3,188.79
  6. Step 6: Final answer
    x = 2,471.69

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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.