Home / 7,578.49-11,367.60-2,648.11

Finding the Fourth Proportional to 7,578.49, 11,367.60 and 2,648.11

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Solution

The fourth proportional to 7,578.49, 11,367.60 and 2,648.11 is: 3,972.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,578.49 : 11,367.60 = 2,648.11 : x
  2. Step 2: Convert to fraction form
    7,578.49/11,367.60 = 2,648.11/x
  3. Step 3: Cross multiply
    7,578.49x = 11,367.60 × 2,648.11
  4. Step 4: Simplify right side
    7,578.49x = 30,102,655.24
  5. Step 5: Solve for x
    x = 30,102,655.24/7,578.49
  6. Step 6: Final answer
    x = 3,972.12

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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.