Home / 3,922.63-5,411.21-2,663.28

Finding the Fourth Proportional to 3,922.63, 5,411.21 and 2,663.28

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Solution

The fourth proportional to 3,922.63, 5,411.21 and 2,663.28 is: 3,673.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922.63 : 5,411.21 = 2,663.28 : x
  2. Step 2: Convert to fraction form
    3,922.63/5,411.21 = 2,663.28/x
  3. Step 3: Cross multiply
    3,922.63x = 5,411.21 × 2,663.28
  4. Step 4: Simplify right side
    3,922.63x = 14,411,554.05
  5. Step 5: Solve for x
    x = 14,411,554.05/3,922.63
  6. Step 6: Final answer
    x = 3,673.95

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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.