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Finding the Fourth Proportional to 1,083.79, 1,626.20 and 536.03

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Solution

The fourth proportional to 1,083.79, 1,626.20 and 536.03 is: 804.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,083.79 : 1,626.20 = 536.03 : x
  2. Step 2: Convert to fraction form
    1,083.79/1,626.20 = 536.03/x
  3. Step 3: Cross multiply
    1,083.79x = 1,626.20 × 536.03
  4. Step 4: Simplify right side
    1,083.79x = 871,691.99
  5. Step 5: Solve for x
    x = 871,691.99/1,083.79
  6. Step 6: Final answer
    x = 804.30

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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.