Home / 3,759.78-5,639.68-1,162.72

Finding the Fourth Proportional to 3,759.78, 5,639.68 and 1,162.72

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Solution

The fourth proportional to 3,759.78, 5,639.68 and 1,162.72 is: 1,744.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.78 : 5,639.68 = 1,162.72 : x
  2. Step 2: Convert to fraction form
    3,759.78/5,639.68 = 1,162.72/x
  3. Step 3: Cross multiply
    3,759.78x = 5,639.68 × 1,162.72
  4. Step 4: Simplify right side
    3,759.78x = 6,557,362.92
  5. Step 5: Solve for x
    x = 6,557,362.92/3,759.78
  6. Step 6: Final answer
    x = 1,744.08

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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.