Home / 1,691.19-2,536.83-1,226.76

Finding the Fourth Proportional to 1,691.19, 2,536.83 and 1,226.76

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Solution

The fourth proportional to 1,691.19, 2,536.83 and 1,226.76 is: 1,840.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,691.19 : 2,536.83 = 1,226.76 : x
  2. Step 2: Convert to fraction form
    1,691.19/2,536.83 = 1,226.76/x
  3. Step 3: Cross multiply
    1,691.19x = 2,536.83 × 1,226.76
  4. Step 4: Simplify right side
    1,691.19x = 3,112,081.57
  5. Step 5: Solve for x
    x = 3,112,081.57/1,691.19
  6. Step 6: Final answer
    x = 1,840.17

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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.