Home / 3,759.42-5,639.84-1,161.75

Finding the Fourth Proportional to 3,759.42, 5,639.84 and 1,161.75

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Solution

The fourth proportional to 3,759.42, 5,639.84 and 1,161.75 is: 1,742.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.42 : 5,639.84 = 1,161.75 : x
  2. Step 2: Convert to fraction form
    3,759.42/5,639.84 = 1,161.75/x
  3. Step 3: Cross multiply
    3,759.42x = 5,639.84 × 1,161.75
  4. Step 4: Simplify right side
    3,759.42x = 6,552,087.02
  5. Step 5: Solve for x
    x = 6,552,087.02/3,759.42
  6. Step 6: Final answer
    x = 1,742.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.