Home / 3,776.79-5,209.41-2,282.13

Finding the Fourth Proportional to 3,776.79, 5,209.41 and 2,282.13

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Solution

The fourth proportional to 3,776.79, 5,209.41 and 2,282.13 is: 3,147.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,776.79 : 5,209.41 = 2,282.13 : x
  2. Step 2: Convert to fraction form
    3,776.79/5,209.41 = 2,282.13/x
  3. Step 3: Cross multiply
    3,776.79x = 5,209.41 × 2,282.13
  4. Step 4: Simplify right side
    3,776.79x = 11,888,550.84
  5. Step 5: Solve for x
    x = 11,888,550.84/3,776.79
  6. Step 6: Final answer
    x = 3,147.79

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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.