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Finding the Fourth Proportional to 3,984.36, 5,976 and 1,173.12

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Solution

The fourth proportional to 3,984.36, 5,976 and 1,173.12 is: 1,759.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.36 : 5,976 = 1,173.12 : x
  2. Step 2: Convert to fraction form
    3,984.36/5,976 = 1,173.12/x
  3. Step 3: Cross multiply
    3,984.36x = 5,976 × 1,173.12
  4. Step 4: Simplify right side
    3,984.36x = 7,010,565.12
  5. Step 5: Solve for x
    x = 7,010,565.12/3,984.36
  6. Step 6: Final answer
    x = 1,759.52

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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.