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Finding the Fourth Proportional to 2,685.57, 4,028.51 and 737.73

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Solution

The fourth proportional to 2,685.57, 4,028.51 and 737.73 is: 1,106.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685.57 : 4,028.51 = 737.73 : x
  2. Step 2: Convert to fraction form
    2,685.57/4,028.51 = 737.73/x
  3. Step 3: Cross multiply
    2,685.57x = 4,028.51 × 737.73
  4. Step 4: Simplify right side
    2,685.57x = 2,971,948.99
  5. Step 5: Solve for x
    x = 2,971,948.99/2,685.57
  6. Step 6: Final answer
    x = 1,106.64

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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.