Home / 1,890.36-2,609.28-1,227.27

Finding the Fourth Proportional to 1,890.36, 2,609.28 and 1,227.27

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Solution

The fourth proportional to 1,890.36, 2,609.28 and 1,227.27 is: 1,694.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.36 : 2,609.28 = 1,227.27 : x
  2. Step 2: Convert to fraction form
    1,890.36/2,609.28 = 1,227.27/x
  3. Step 3: Cross multiply
    1,890.36x = 2,609.28 × 1,227.27
  4. Step 4: Simplify right side
    1,890.36x = 3,202,291.07
  5. Step 5: Solve for x
    x = 3,202,291.07/1,890.36
  6. Step 6: Final answer
    x = 1,694.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.