Home / 7,774.90-11,664.68-3,617.38

Finding the Fourth Proportional to 7,774.90, 11,664.68 and 3,617.38

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Solution

The fourth proportional to 7,774.90, 11,664.68 and 3,617.38 is: 5,427.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,774.90 : 11,664.68 = 3,617.38 : x
  2. Step 2: Convert to fraction form
    7,774.90/11,664.68 = 3,617.38/x
  3. Step 3: Cross multiply
    7,774.90x = 11,664.68 × 3,617.38
  4. Step 4: Simplify right side
    7,774.90x = 42,195,566.15
  5. Step 5: Solve for x
    x = 42,195,566.15/7,774.90
  6. Step 6: Final answer
    x = 5,427.15

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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.