Home / 2,709.60-4,066.68-1,891.44

Finding the Fourth Proportional to 2,709.60, 4,066.68 and 1,891.44

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Solution

The fourth proportional to 2,709.60, 4,066.68 and 1,891.44 is: 2,838.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,709.60 : 4,066.68 = 1,891.44 : x
  2. Step 2: Convert to fraction form
    2,709.60/4,066.68 = 1,891.44/x
  3. Step 3: Cross multiply
    2,709.60x = 4,066.68 × 1,891.44
  4. Step 4: Simplify right side
    2,709.60x = 7,691,881.22
  5. Step 5: Solve for x
    x = 7,691,881.22/2,709.60
  6. Step 6: Final answer
    x = 2,838.75

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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.