Home / 1,629.90-2,249.07-966.60

Finding the Fourth Proportional to 1,629.90, 2,249.07 and 966.60

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Solution

The fourth proportional to 1,629.90, 2,249.07 and 966.60 is: 1,333.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,629.90 : 2,249.07 = 966.60 : x
  2. Step 2: Convert to fraction form
    1,629.90/2,249.07 = 966.60/x
  3. Step 3: Cross multiply
    1,629.90x = 2,249.07 × 966.60
  4. Step 4: Simplify right side
    1,629.90x = 2,173,951.06
  5. Step 5: Solve for x
    x = 2,173,951.06/1,629.90
  6. Step 6: Final answer
    x = 1,333.79

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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.