Home / 3,685.88-5,529.73-1,220.95

Finding the Fourth Proportional to 3,685.88, 5,529.73 and 1,220.95

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Solution

The fourth proportional to 3,685.88, 5,529.73 and 1,220.95 is: 1,831.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,685.88 : 5,529.73 = 1,220.95 : x
  2. Step 2: Convert to fraction form
    3,685.88/5,529.73 = 1,220.95/x
  3. Step 3: Cross multiply
    3,685.88x = 5,529.73 × 1,220.95
  4. Step 4: Simplify right side
    3,685.88x = 6,751,506.97
  5. Step 5: Solve for x
    x = 6,751,506.97/3,685.88
  6. Step 6: Final answer
    x = 1,831.72

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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.