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Finding the Fourth Proportional to 1,383.21, 2,073.64 and 602.62

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Solution

The fourth proportional to 1,383.21, 2,073.64 and 602.62 is: 903.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383.21 : 2,073.64 = 602.62 : x
  2. Step 2: Convert to fraction form
    1,383.21/2,073.64 = 602.62/x
  3. Step 3: Cross multiply
    1,383.21x = 2,073.64 × 602.62
  4. Step 4: Simplify right side
    1,383.21x = 1,249,616.94
  5. Step 5: Solve for x
    x = 1,249,616.94/1,383.21
  6. Step 6: Final answer
    x = 903.42

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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.