Home / 7,324.88-10,979.64-3,426

Finding the Fourth Proportional to 7,324.88, 10,979.64 and 3,426

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Solution

The fourth proportional to 7,324.88, 10,979.64 and 3,426 is: 5,135.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,324.88 : 10,979.64 = 3,426 : x
  2. Step 2: Convert to fraction form
    7,324.88/10,979.64 = 3,426/x
  3. Step 3: Cross multiply
    7,324.88x = 10,979.64 × 3,426
  4. Step 4: Simplify right side
    7,324.88x = 37,616,246.64
  5. Step 5: Solve for x
    x = 37,616,246.64/7,324.88
  6. Step 6: Final answer
    x = 5,135.41

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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.