Home / 6,974.69-9,625.08-3,990.51

Finding the Fourth Proportional to 6,974.69, 9,625.08 and 3,990.51

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Solution

The fourth proportional to 6,974.69, 9,625.08 and 3,990.51 is: 5,506.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,974.69 : 9,625.08 = 3,990.51 : x
  2. Step 2: Convert to fraction form
    6,974.69/9,625.08 = 3,990.51/x
  3. Step 3: Cross multiply
    6,974.69x = 9,625.08 × 3,990.51
  4. Step 4: Simplify right side
    6,974.69x = 38,408,977.99
  5. Step 5: Solve for x
    x = 38,408,977.99/6,974.69
  6. Step 6: Final answer
    x = 5,506.91

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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.