Home / 1,768.11-2,651.82-1,680.30

Finding the Fourth Proportional to 1,768.11, 2,651.82 and 1,680.30

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Solution

The fourth proportional to 1,768.11, 2,651.82 and 1,680.30 is: 2,520.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,768.11 : 2,651.82 = 1,680.30 : x
  2. Step 2: Convert to fraction form
    1,768.11/2,651.82 = 1,680.30/x
  3. Step 3: Cross multiply
    1,768.11x = 2,651.82 × 1,680.30
  4. Step 4: Simplify right side
    1,768.11x = 4,455,856.30
  5. Step 5: Solve for x
    x = 4,455,856.30/1,768.11
  6. Step 6: Final answer
    x = 2,520.13

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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.