Home / 3,760.31-5,190.26-2,188.70

Finding the Fourth Proportional to 3,760.31, 5,190.26 and 2,188.70

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Solution

The fourth proportional to 3,760.31, 5,190.26 and 2,188.70 is: 3,021.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,760.31 : 5,190.26 = 2,188.70 : x
  2. Step 2: Convert to fraction form
    3,760.31/5,190.26 = 2,188.70/x
  3. Step 3: Cross multiply
    3,760.31x = 5,190.26 × 2,188.70
  4. Step 4: Simplify right side
    3,760.31x = 11,359,922.06
  5. Step 5: Solve for x
    x = 11,359,922.06/3,760.31
  6. Step 6: Final answer
    x = 3,021.01

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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.