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Finding the Fourth Proportional to 1,402.42, 2,103.75 and 536.26

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Solution

The fourth proportional to 1,402.42, 2,103.75 and 536.26 is: 804.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402.42 : 2,103.75 = 536.26 : x
  2. Step 2: Convert to fraction form
    1,402.42/2,103.75 = 536.26/x
  3. Step 3: Cross multiply
    1,402.42x = 2,103.75 × 536.26
  4. Step 4: Simplify right side
    1,402.42x = 1,128,156.98
  5. Step 5: Solve for x
    x = 1,128,156.98/1,402.42
  6. Step 6: Final answer
    x = 804.44

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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.