Home / 3,901.04-5,383.55-2,132.75

Finding the Fourth Proportional to 3,901.04, 5,383.55 and 2,132.75

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Solution

The fourth proportional to 3,901.04, 5,383.55 and 2,132.75 is: 2,943.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,901.04 : 5,383.55 = 2,132.75 : x
  2. Step 2: Convert to fraction form
    3,901.04/5,383.55 = 2,132.75/x
  3. Step 3: Cross multiply
    3,901.04x = 5,383.55 × 2,132.75
  4. Step 4: Simplify right side
    3,901.04x = 11,481,744.68
  5. Step 5: Solve for x
    x = 11,481,744.68/3,901.04
  6. Step 6: Final answer
    x = 2,943.25

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Half scale
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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.