Home / 3,912.04-5,867.83-1,138.65

Finding the Fourth Proportional to 3,912.04, 5,867.83 and 1,138.65

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Solution

The fourth proportional to 3,912.04, 5,867.83 and 1,138.65 is: 1,707.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912.04 : 5,867.83 = 1,138.65 : x
  2. Step 2: Convert to fraction form
    3,912.04/5,867.83 = 1,138.65/x
  3. Step 3: Cross multiply
    3,912.04x = 5,867.83 × 1,138.65
  4. Step 4: Simplify right side
    3,912.04x = 6,681,404.63
  5. Step 5: Solve for x
    x = 6,681,404.63/3,912.04
  6. Step 6: Final answer
    x = 1,707.91

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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.