Home / 6,435.78-9,656.37-2,738.81

Finding the Fourth Proportional to 6,435.78, 9,656.37 and 2,738.81

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Solution

The fourth proportional to 6,435.78, 9,656.37 and 2,738.81 is: 4,109.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,435.78 : 9,656.37 = 2,738.81 : x
  2. Step 2: Convert to fraction form
    6,435.78/9,656.37 = 2,738.81/x
  3. Step 3: Cross multiply
    6,435.78x = 9,656.37 × 2,738.81
  4. Step 4: Simplify right side
    6,435.78x = 26,446,914.44
  5. Step 5: Solve for x
    x = 26,446,914.44/6,435.78
  6. Step 6: Final answer
    x = 4,109.36

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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.