Home / 2,553.14-3,521.18-2,156.75

Finding the Fourth Proportional to 2,553.14, 3,521.18 and 2,156.75

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Solution

The fourth proportional to 2,553.14, 3,521.18 and 2,156.75 is: 2,974.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,553.14 : 3,521.18 = 2,156.75 : x
  2. Step 2: Convert to fraction form
    2,553.14/3,521.18 = 2,156.75/x
  3. Step 3: Cross multiply
    2,553.14x = 3,521.18 × 2,156.75
  4. Step 4: Simplify right side
    2,553.14x = 7,594,304.97
  5. Step 5: Solve for x
    x = 7,594,304.97/2,553.14
  6. Step 6: Final answer
    x = 2,974.50

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Double scale
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1.5x scale

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.