Home / 3,519.36-5,278.19-1,326.87

Finding the Fourth Proportional to 3,519.36, 5,278.19 and 1,326.87

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Solution

The fourth proportional to 3,519.36, 5,278.19 and 1,326.87 is: 1,989.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.36 : 5,278.19 = 1,326.87 : x
  2. Step 2: Convert to fraction form
    3,519.36/5,278.19 = 1,326.87/x
  3. Step 3: Cross multiply
    3,519.36x = 5,278.19 × 1,326.87
  4. Step 4: Simplify right side
    3,519.36x = 7,003,465.33
  5. Step 5: Solve for x
    x = 7,003,465.33/3,519.36
  6. Step 6: Final answer
    x = 1,989.98

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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.