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Finding the Fourth Proportional to 2,678.66, 3,672.47 and 2,629.34

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Solution

The fourth proportional to 2,678.66, 3,672.47 and 2,629.34 is: 3,604.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678.66 : 3,672.47 = 2,629.34 : x
  2. Step 2: Convert to fraction form
    2,678.66/3,672.47 = 2,629.34/x
  3. Step 3: Cross multiply
    2,678.66x = 3,672.47 × 2,629.34
  4. Step 4: Simplify right side
    2,678.66x = 9,656,172.27
  5. Step 5: Solve for x
    x = 9,656,172.27/2,678.66
  6. Step 6: Final answer
    x = 3,604.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.