Home / 7,307.10-10,083.78-3,949.90

Finding the Fourth Proportional to 7,307.10, 10,083.78 and 3,949.90

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Solution

The fourth proportional to 7,307.10, 10,083.78 and 3,949.90 is: 5,450.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,307.10 : 10,083.78 = 3,949.90 : x
  2. Step 2: Convert to fraction form
    7,307.10/10,083.78 = 3,949.90/x
  3. Step 3: Cross multiply
    7,307.10x = 10,083.78 × 3,949.90
  4. Step 4: Simplify right side
    7,307.10x = 39,829,922.62
  5. Step 5: Solve for x
    x = 39,829,922.62/7,307.10
  6. Step 6: Final answer
    x = 5,450.85

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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.