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Finding the Fourth Proportional to 7,083.07, 9,774.15 and 3,939.28

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Solution

The fourth proportional to 7,083.07, 9,774.15 and 3,939.28 is: 5,435.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,083.07 : 9,774.15 = 3,939.28 : x
  2. Step 2: Convert to fraction form
    7,083.07/9,774.15 = 3,939.28/x
  3. Step 3: Cross multiply
    7,083.07x = 9,774.15 × 3,939.28
  4. Step 4: Simplify right side
    7,083.07x = 38,503,113.61
  5. Step 5: Solve for x
    x = 38,503,113.61/7,083.07
  6. Step 6: Final answer
    x = 5,435.94

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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.