Home / 1,722.51-2,579.64-1,227.73

Finding the Fourth Proportional to 1,722.51, 2,579.64 and 1,227.73

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Solution

The fourth proportional to 1,722.51, 2,579.64 and 1,227.73 is: 1,838.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722.51 : 2,579.64 = 1,227.73 : x
  2. Step 2: Convert to fraction form
    1,722.51/2,579.64 = 1,227.73/x
  3. Step 3: Cross multiply
    1,722.51x = 2,579.64 × 1,227.73
  4. Step 4: Simplify right side
    1,722.51x = 3,167,101.42
  5. Step 5: Solve for x
    x = 3,167,101.42/1,722.51
  6. Step 6: Final answer
    x = 1,838.65

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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.