Home / 2,267.13-3,128.49-1,272.41

Finding the Fourth Proportional to 2,267.13, 3,128.49 and 1,272.41

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Solution

The fourth proportional to 2,267.13, 3,128.49 and 1,272.41 is: 1,755.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,267.13 : 3,128.49 = 1,272.41 : x
  2. Step 2: Convert to fraction form
    2,267.13/3,128.49 = 1,272.41/x
  3. Step 3: Cross multiply
    2,267.13x = 3,128.49 × 1,272.41
  4. Step 4: Simplify right side
    2,267.13x = 3,980,721.96
  5. Step 5: Solve for x
    x = 3,980,721.96/2,267.13
  6. Step 6: Final answer
    x = 1,755.84

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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.