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Finding the Fourth Proportional to 3,599.25, 5,399.21 and 1,002.21

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Solution

The fourth proportional to 3,599.25, 5,399.21 and 1,002.21 is: 1,503.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,599.25 : 5,399.21 = 1,002.21 : x
  2. Step 2: Convert to fraction form
    3,599.25/5,399.21 = 1,002.21/x
  3. Step 3: Cross multiply
    3,599.25x = 5,399.21 × 1,002.21
  4. Step 4: Simplify right side
    3,599.25x = 5,411,137.24
  5. Step 5: Solve for x
    x = 5,411,137.24/3,599.25
  6. Step 6: Final answer
    x = 1,503.41

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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.