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Finding the Fourth Proportional to 1,184.08, 1,774.52 and 636.48

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Solution

The fourth proportional to 1,184.08, 1,774.52 and 636.48 is: 953.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,184.08 : 1,774.52 = 636.48 : x
  2. Step 2: Convert to fraction form
    1,184.08/1,774.52 = 636.48/x
  3. Step 3: Cross multiply
    1,184.08x = 1,774.52 × 636.48
  4. Step 4: Simplify right side
    1,184.08x = 1,129,446.49
  5. Step 5: Solve for x
    x = 1,129,446.49/1,184.08
  6. Step 6: Final answer
    x = 953.86

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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.