Home / 3,680.37-5,517.11-1,339.81

Finding the Fourth Proportional to 3,680.37, 5,517.11 and 1,339.81

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Solution

The fourth proportional to 3,680.37, 5,517.11 and 1,339.81 is: 2,008.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.37 : 5,517.11 = 1,339.81 : x
  2. Step 2: Convert to fraction form
    3,680.37/5,517.11 = 1,339.81/x
  3. Step 3: Cross multiply
    3,680.37x = 5,517.11 × 1,339.81
  4. Step 4: Simplify right side
    3,680.37x = 7,391,868.71
  5. Step 5: Solve for x
    x = 7,391,868.71/3,680.37
  6. Step 6: Final answer
    x = 2,008.46

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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.