Home / 7,774.16-11,654.80-3,091.28

Finding the Fourth Proportional to 7,774.16, 11,654.80 and 3,091.28

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Solution

The fourth proportional to 7,774.16, 11,654.80 and 3,091.28 is: 4,634.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,774.16 : 11,654.80 = 3,091.28 : x
  2. Step 2: Convert to fraction form
    7,774.16/11,654.80 = 3,091.28/x
  3. Step 3: Cross multiply
    7,774.16x = 11,654.80 × 3,091.28
  4. Step 4: Simplify right side
    7,774.16x = 36,028,250.14
  5. Step 5: Solve for x
    x = 36,028,250.14/7,774.16
  6. Step 6: Final answer
    x = 4,634.36

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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.