Home / 3,326.48-4,989.80-1,378.16

Finding the Fourth Proportional to 3,326.48, 4,989.80 and 1,378.16

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Solution

The fourth proportional to 3,326.48, 4,989.80 and 1,378.16 is: 2,067.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,326.48 : 4,989.80 = 1,378.16 : x
  2. Step 2: Convert to fraction form
    3,326.48/4,989.80 = 1,378.16/x
  3. Step 3: Cross multiply
    3,326.48x = 4,989.80 × 1,378.16
  4. Step 4: Simplify right side
    3,326.48x = 6,876,742.77
  5. Step 5: Solve for x
    x = 6,876,742.77/3,326.48
  6. Step 6: Final answer
    x = 2,067.27

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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.