Home / 3,111.08-4,663.38-2,137.46

Finding the Fourth Proportional to 3,111.08, 4,663.38 and 2,137.46

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Solution

The fourth proportional to 3,111.08, 4,663.38 and 2,137.46 is: 3,203.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111.08 : 4,663.38 = 2,137.46 : x
  2. Step 2: Convert to fraction form
    3,111.08/4,663.38 = 2,137.46/x
  3. Step 3: Cross multiply
    3,111.08x = 4,663.38 × 2,137.46
  4. Step 4: Simplify right side
    3,111.08x = 9,967,788.21
  5. Step 5: Solve for x
    x = 9,967,788.21/3,111.08
  6. Step 6: Final answer
    x = 3,203.96

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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.