Home / 3,774.78-5,656.70-2,127.82

Finding the Fourth Proportional to 3,774.78, 5,656.70 and 2,127.82

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Solution

The fourth proportional to 3,774.78, 5,656.70 and 2,127.82 is: 3,188.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,774.78 : 5,656.70 = 2,127.82 : x
  2. Step 2: Convert to fraction form
    3,774.78/5,656.70 = 2,127.82/x
  3. Step 3: Cross multiply
    3,774.78x = 5,656.70 × 2,127.82
  4. Step 4: Simplify right side
    3,774.78x = 12,036,453.54
  5. Step 5: Solve for x
    x = 12,036,453.54/3,774.78
  6. Step 6: Final answer
    x = 3,188.65

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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.