Home / 5,155.47-7,726.73-2,553.75

Finding the Fourth Proportional to 5,155.47, 7,726.73 and 2,553.75

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Solution

The fourth proportional to 5,155.47, 7,726.73 and 2,553.75 is: 3,827.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.47 : 7,726.73 = 2,553.75 : x
  2. Step 2: Convert to fraction form
    5,155.47/7,726.73 = 2,553.75/x
  3. Step 3: Cross multiply
    5,155.47x = 7,726.73 × 2,553.75
  4. Step 4: Simplify right side
    5,155.47x = 19,732,123.97
  5. Step 5: Solve for x
    x = 19,732,123.97/5,155.47
  6. Step 6: Final answer
    x = 3,827.42

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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.