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Finding the Fourth Proportional to 3,551.27, 5,326.91 and 954.21

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Solution

The fourth proportional to 3,551.27, 5,326.91 and 954.21 is: 1,431.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551.27 : 5,326.91 = 954.21 : x
  2. Step 2: Convert to fraction form
    3,551.27/5,326.91 = 954.21/x
  3. Step 3: Cross multiply
    3,551.27x = 5,326.91 × 954.21
  4. Step 4: Simplify right side
    3,551.27x = 5,082,993.87
  5. Step 5: Solve for x
    x = 5,082,993.87/3,551.27
  6. Step 6: Final answer
    x = 1,431.32

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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.