Home / 3,901.08-5,383.62-2,132.79

Finding the Fourth Proportional to 3,901.08, 5,383.62 and 2,132.79

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Solution

The fourth proportional to 3,901.08, 5,383.62 and 2,132.79 is: 2,943.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,901.08 : 5,383.62 = 2,132.79 : x
  2. Step 2: Convert to fraction form
    3,901.08/5,383.62 = 2,132.79/x
  3. Step 3: Cross multiply
    3,901.08x = 5,383.62 × 2,132.79
  4. Step 4: Simplify right side
    3,901.08x = 11,482,130.90
  5. Step 5: Solve for x
    x = 11,482,130.90/3,901.08
  6. Step 6: Final answer
    x = 2,943.32

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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.