Home / 4,447.31-6,137.78-2,678.87

Finding the Fourth Proportional to 4,447.31, 6,137.78 and 2,678.87

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Solution

The fourth proportional to 4,447.31, 6,137.78 and 2,678.87 is: 3,697.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,447.31 : 6,137.78 = 2,678.87 : x
  2. Step 2: Convert to fraction form
    4,447.31/6,137.78 = 2,678.87/x
  3. Step 3: Cross multiply
    4,447.31x = 6,137.78 × 2,678.87
  4. Step 4: Simplify right side
    4,447.31x = 16,442,316.66
  5. Step 5: Solve for x
    x = 16,442,316.66/4,447.31
  6. Step 6: Final answer
    x = 3,697.14

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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.