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Finding the Fourth Proportional to 1,185.34, 1,778.01 and 536.02

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Solution

The fourth proportional to 1,185.34, 1,778.01 and 536.02 is: 804.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185.34 : 1,778.01 = 536.02 : x
  2. Step 2: Convert to fraction form
    1,185.34/1,778.01 = 536.02/x
  3. Step 3: Cross multiply
    1,185.34x = 1,778.01 × 536.02
  4. Step 4: Simplify right side
    1,185.34x = 953,048.92
  5. Step 5: Solve for x
    x = 953,048.92/1,185.34
  6. Step 6: Final answer
    x = 804.03

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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.