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Finding the Fourth Proportional to 1,193.44, 1,646.88 and 669.46

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Solution

The fourth proportional to 1,193.44, 1,646.88 and 669.46 is: 923.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,193.44 : 1,646.88 = 669.46 : x
  2. Step 2: Convert to fraction form
    1,193.44/1,646.88 = 669.46/x
  3. Step 3: Cross multiply
    1,193.44x = 1,646.88 × 669.46
  4. Step 4: Simplify right side
    1,193.44x = 1,102,520.28
  5. Step 5: Solve for x
    x = 1,102,520.28/1,193.44
  6. Step 6: Final answer
    x = 923.82

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1.5x scale

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.