Home / 4,162.39-6,243.86-1,388.95

Finding the Fourth Proportional to 4,162.39, 6,243.86 and 1,388.95

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Solution

The fourth proportional to 4,162.39, 6,243.86 and 1,388.95 is: 2,083.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,162.39 : 6,243.86 = 1,388.95 : x
  2. Step 2: Convert to fraction form
    4,162.39/6,243.86 = 1,388.95/x
  3. Step 3: Cross multiply
    4,162.39x = 6,243.86 × 1,388.95
  4. Step 4: Simplify right side
    4,162.39x = 8,672,409.35
  5. Step 5: Solve for x
    x = 8,672,409.35/4,162.39
  6. Step 6: Final answer
    x = 2,083.52

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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.