Home / 5,511.86-7,603.17-3,623.78

Finding the Fourth Proportional to 5,511.86, 7,603.17 and 3,623.78

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Solution

The fourth proportional to 5,511.86, 7,603.17 and 3,623.78 is: 4,998.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,511.86 : 7,603.17 = 3,623.78 : x
  2. Step 2: Convert to fraction form
    5,511.86/7,603.17 = 3,623.78/x
  3. Step 3: Cross multiply
    5,511.86x = 7,603.17 × 3,623.78
  4. Step 4: Simplify right side
    5,511.86x = 27,552,215.38
  5. Step 5: Solve for x
    x = 27,552,215.38/5,511.86
  6. Step 6: Final answer
    x = 4,998.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.