Home / 1,926.20-2,874.17-1,808.64

Finding the Fourth Proportional to 1,926.20, 2,874.17 and 1,808.64

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Solution

The fourth proportional to 1,926.20, 2,874.17 and 1,808.64 is: 2,698.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,926.20 : 2,874.17 = 1,808.64 : x
  2. Step 2: Convert to fraction form
    1,926.20/2,874.17 = 1,808.64/x
  3. Step 3: Cross multiply
    1,926.20x = 2,874.17 × 1,808.64
  4. Step 4: Simplify right side
    1,926.20x = 5,198,338.83
  5. Step 5: Solve for x
    x = 5,198,338.83/1,926.20
  6. Step 6: Final answer
    x = 2,698.75

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.