Home / 3,812.19-5,260.71-2,133.75

Finding the Fourth Proportional to 3,812.19, 5,260.71 and 2,133.75

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Solution

The fourth proportional to 3,812.19, 5,260.71 and 2,133.75 is: 2,944.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812.19 : 5,260.71 = 2,133.75 : x
  2. Step 2: Convert to fraction form
    3,812.19/5,260.71 = 2,133.75/x
  3. Step 3: Cross multiply
    3,812.19x = 5,260.71 × 2,133.75
  4. Step 4: Simplify right side
    3,812.19x = 11,225,039.96
  5. Step 5: Solve for x
    x = 11,225,039.96/3,812.19
  6. Step 6: Final answer
    x = 2,944.51

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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.