Home / 3,390.15-5,087.96-1,831.92

Finding the Fourth Proportional to 3,390.15, 5,087.96 and 1,831.92

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Solution

The fourth proportional to 3,390.15, 5,087.96 and 1,831.92 is: 2,749.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.15 : 5,087.96 = 1,831.92 : x
  2. Step 2: Convert to fraction form
    3,390.15/5,087.96 = 1,831.92/x
  3. Step 3: Cross multiply
    3,390.15x = 5,087.96 × 1,831.92
  4. Step 4: Simplify right side
    3,390.15x = 9,320,735.68
  5. Step 5: Solve for x
    x = 9,320,735.68/3,390.15
  6. Step 6: Final answer
    x = 2,749.36

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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.