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Finding the Fourth Proportional to 1,196.55, 1,651.23 and 672.57

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Solution

The fourth proportional to 1,196.55, 1,651.23 and 672.57 is: 928.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,196.55 : 1,651.23 = 672.57 : x
  2. Step 2: Convert to fraction form
    1,196.55/1,651.23 = 672.57/x
  3. Step 3: Cross multiply
    1,196.55x = 1,651.23 × 672.57
  4. Step 4: Simplify right side
    1,196.55x = 1,110,567.76
  5. Step 5: Solve for x
    x = 1,110,567.76/1,196.55
  6. Step 6: Final answer
    x = 928.14

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.