Home / 3,759.11-5,186.63-2,431.21

Finding the Fourth Proportional to 3,759.11, 5,186.63 and 2,431.21

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Solution

The fourth proportional to 3,759.11, 5,186.63 and 2,431.21 is: 3,354.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.11 : 5,186.63 = 2,431.21 : x
  2. Step 2: Convert to fraction form
    3,759.11/5,186.63 = 2,431.21/x
  3. Step 3: Cross multiply
    3,759.11x = 5,186.63 × 2,431.21
  4. Step 4: Simplify right side
    3,759.11x = 12,609,786.72
  5. Step 5: Solve for x
    x = 12,609,786.72/3,759.11
  6. Step 6: Final answer
    x = 3,354.46

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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.