Home / 3,811.93-5,260.55-2,133.16

Finding the Fourth Proportional to 3,811.93, 5,260.55 and 2,133.16

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Solution

The fourth proportional to 3,811.93, 5,260.55 and 2,133.16 is: 2,943.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.93 : 5,260.55 = 2,133.16 : x
  2. Step 2: Convert to fraction form
    3,811.93/5,260.55 = 2,133.16/x
  3. Step 3: Cross multiply
    3,811.93x = 5,260.55 × 2,133.16
  4. Step 4: Simplify right side
    3,811.93x = 11,221,571.02
  5. Step 5: Solve for x
    x = 11,221,571.02/3,811.93
  6. Step 6: Final answer
    x = 2,943.80

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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.