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Finding the Fourth Proportional to 3,969.42, 5,954.42 and 1,336.93

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Solution

The fourth proportional to 3,969.42, 5,954.42 and 1,336.93 is: 2,005.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.42 : 5,954.42 = 1,336.93 : x
  2. Step 2: Convert to fraction form
    3,969.42/5,954.42 = 1,336.93/x
  3. Step 3: Cross multiply
    3,969.42x = 5,954.42 × 1,336.93
  4. Step 4: Simplify right side
    3,969.42x = 7,960,642.73
  5. Step 5: Solve for x
    x = 7,960,642.73/3,969.42
  6. Step 6: Final answer
    x = 2,005.49

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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.