Home / 6,440.78-9,648.92-3,669.36

Finding the Fourth Proportional to 6,440.78, 9,648.92 and 3,669.36

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Solution

The fourth proportional to 6,440.78, 9,648.92 and 3,669.36 is: 5,497.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,440.78 : 9,648.92 = 3,669.36 : x
  2. Step 2: Convert to fraction form
    6,440.78/9,648.92 = 3,669.36/x
  3. Step 3: Cross multiply
    6,440.78x = 9,648.92 × 3,669.36
  4. Step 4: Simplify right side
    6,440.78x = 35,405,342.74
  5. Step 5: Solve for x
    x = 35,405,342.74/6,440.78
  6. Step 6: Final answer
    x = 5,497.06

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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.