Home / 3,812.18-5,260.38-2,133.35

Finding the Fourth Proportional to 3,812.18, 5,260.38 and 2,133.35

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Solution

The fourth proportional to 3,812.18, 5,260.38 and 2,133.35 is: 2,943.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812.18 : 5,260.38 = 2,133.35 : x
  2. Step 2: Convert to fraction form
    3,812.18/5,260.38 = 2,133.35/x
  3. Step 3: Cross multiply
    3,812.18x = 5,260.38 × 2,133.35
  4. Step 4: Simplify right side
    3,812.18x = 11,222,217.10
  5. Step 5: Solve for x
    x = 11,222,217.10/3,812.18
  6. Step 6: Final answer
    x = 2,943.78

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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.