Home / 2,631.14-3,939.98-2,553.28

Finding the Fourth Proportional to 2,631.14, 3,939.98 and 2,553.28

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Solution

The fourth proportional to 2,631.14, 3,939.98 and 2,553.28 is: 3,823.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631.14 : 3,939.98 = 2,553.28 : x
  2. Step 2: Convert to fraction form
    2,631.14/3,939.98 = 2,553.28/x
  3. Step 3: Cross multiply
    2,631.14x = 3,939.98 × 2,553.28
  4. Step 4: Simplify right side
    2,631.14x = 10,059,872.13
  5. Step 5: Solve for x
    x = 10,059,872.13/2,631.14
  6. Step 6: Final answer
    x = 3,823.39

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1.5x scale

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.