Home / 3,811.90-5,260.53-2,133.37

Finding the Fourth Proportional to 3,811.90, 5,260.53 and 2,133.37

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Solution

The fourth proportional to 3,811.90, 5,260.53 and 2,133.37 is: 2,944.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.90 : 5,260.53 = 2,133.37 : x
  2. Step 2: Convert to fraction form
    3,811.90/5,260.53 = 2,133.37/x
  3. Step 3: Cross multiply
    3,811.90x = 5,260.53 × 2,133.37
  4. Step 4: Simplify right side
    3,811.90x = 11,222,656.89
  5. Step 5: Solve for x
    x = 11,222,656.89/3,811.90
  6. Step 6: Final answer
    x = 2,944.11

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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.