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Finding the Fourth Proportional to 1,629.76, 2,248.98 and 966.68

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Solution

The fourth proportional to 1,629.76, 2,248.98 and 966.68 is: 1,333.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,629.76 : 2,248.98 = 966.68 : x
  2. Step 2: Convert to fraction form
    1,629.76/2,248.98 = 966.68/x
  3. Step 3: Cross multiply
    1,629.76x = 2,248.98 × 966.68
  4. Step 4: Simplify right side
    1,629.76x = 2,174,043.99
  5. Step 5: Solve for x
    x = 2,174,043.99/1,629.76
  6. Step 6: Final answer
    x = 1,333.97

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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.