Home / 3,901.24-5,383.62-2,132.80

Finding the Fourth Proportional to 3,901.24, 5,383.62 and 2,132.80

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Solution

The fourth proportional to 3,901.24, 5,383.62 and 2,132.80 is: 2,943.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,901.24 : 5,383.62 = 2,132.80 : x
  2. Step 2: Convert to fraction form
    3,901.24/5,383.62 = 2,132.80/x
  3. Step 3: Cross multiply
    3,901.24x = 5,383.62 × 2,132.80
  4. Step 4: Simplify right side
    3,901.24x = 11,482,184.74
  5. Step 5: Solve for x
    x = 11,482,184.74/3,901.24
  6. Step 6: Final answer
    x = 2,943.21

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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.