Home / 6,386.45-9,579.11-2,225.75

Finding the Fourth Proportional to 6,386.45, 9,579.11 and 2,225.75

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Solution

The fourth proportional to 6,386.45, 9,579.11 and 2,225.75 is: 3,338.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,386.45 : 9,579.11 = 2,225.75 : x
  2. Step 2: Convert to fraction form
    6,386.45/9,579.11 = 2,225.75/x
  3. Step 3: Cross multiply
    6,386.45x = 9,579.11 × 2,225.75
  4. Step 4: Simplify right side
    6,386.45x = 21,320,692.95
  5. Step 5: Solve for x
    x = 21,320,692.95/6,386.45
  6. Step 6: Final answer
    x = 3,338.43

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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.