Home / 3,553.95-4,905.68-2,138.43

Finding the Fourth Proportional to 3,553.95, 4,905.68 and 2,138.43

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Solution

The fourth proportional to 3,553.95, 4,905.68 and 2,138.43 is: 2,951.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,553.95 : 4,905.68 = 2,138.43 : x
  2. Step 2: Convert to fraction form
    3,553.95/4,905.68 = 2,138.43/x
  3. Step 3: Cross multiply
    3,553.95x = 4,905.68 × 2,138.43
  4. Step 4: Simplify right side
    3,553.95x = 10,490,442.59
  5. Step 5: Solve for x
    x = 10,490,442.59/3,553.95
  6. Step 6: Final answer
    x = 2,951.77

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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.