Home / 2,266.91-3,128.48-1,272.36

Finding the Fourth Proportional to 2,266.91, 3,128.48 and 1,272.36

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Solution

The fourth proportional to 2,266.91, 3,128.48 and 1,272.36 is: 1,755.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,266.91 : 3,128.48 = 1,272.36 : x
  2. Step 2: Convert to fraction form
    2,266.91/3,128.48 = 1,272.36/x
  3. Step 3: Cross multiply
    2,266.91x = 3,128.48 × 1,272.36
  4. Step 4: Simplify right side
    2,266.91x = 3,980,555.99
  5. Step 5: Solve for x
    x = 3,980,555.99/2,266.91
  6. Step 6: Final answer
    x = 1,755.94

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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.