Home / 3,811.79-5,260.54-2,133.36

Finding the Fourth Proportional to 3,811.79, 5,260.54 and 2,133.36

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Solution

The fourth proportional to 3,811.79, 5,260.54 and 2,133.36 is: 2,944.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.79 : 5,260.54 = 2,133.36 : x
  2. Step 2: Convert to fraction form
    3,811.79/5,260.54 = 2,133.36/x
  3. Step 3: Cross multiply
    3,811.79x = 5,260.54 × 2,133.36
  4. Step 4: Simplify right side
    3,811.79x = 11,222,625.61
  5. Step 5: Solve for x
    x = 11,222,625.61/3,811.79
  6. Step 6: Final answer
    x = 2,944.19

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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.