Home / 2,214.36-3,317.88-979.92

Finding the Fourth Proportional to 2,214.36, 3,317.88 and 979.92

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Solution

The fourth proportional to 2,214.36, 3,317.88 and 979.92 is: 1,468.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,214.36 : 3,317.88 = 979.92 : x
  2. Step 2: Convert to fraction form
    2,214.36/3,317.88 = 979.92/x
  3. Step 3: Cross multiply
    2,214.36x = 3,317.88 × 979.92
  4. Step 4: Simplify right side
    2,214.36x = 3,251,256.97
  5. Step 5: Solve for x
    x = 3,251,256.97/2,214.36
  6. Step 6: Final answer
    x = 1,468.26

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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.