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Finding the Fourth Proportional to 1,193.24, 1,646.66 and 751.72

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Solution

The fourth proportional to 1,193.24, 1,646.66 and 751.72 is: 1,037.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,193.24 : 1,646.66 = 751.72 : x
  2. Step 2: Convert to fraction form
    1,193.24/1,646.66 = 751.72/x
  3. Step 3: Cross multiply
    1,193.24x = 1,646.66 × 751.72
  4. Step 4: Simplify right side
    1,193.24x = 1,237,815.26
  5. Step 5: Solve for x
    x = 1,237,815.26/1,193.24
  6. Step 6: Final answer
    x = 1,037.36

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Why These Related Problems?

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