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Finding the Fourth Proportional to 2,646.66, 3,968.71 and 797.43

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Solution

The fourth proportional to 2,646.66, 3,968.71 and 797.43 is: 1,195.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,646.66 : 3,968.71 = 797.43 : x
  2. Step 2: Convert to fraction form
    2,646.66/3,968.71 = 797.43/x
  3. Step 3: Cross multiply
    2,646.66x = 3,968.71 × 797.43
  4. Step 4: Simplify right side
    2,646.66x = 3,164,768.42
  5. Step 5: Solve for x
    x = 3,164,768.42/2,646.66
  6. Step 6: Final answer
    x = 1,195.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.