Home / 2,279.36-3,146.00-1,335.66

Finding the Fourth Proportional to 2,279.36, 3,146.00 and 1,335.66

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Solution

The fourth proportional to 2,279.36, 3,146.00 and 1,335.66 is: 1,843.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,279.36 : 3,146.00 = 1,335.66 : x
  2. Step 2: Convert to fraction form
    2,279.36/3,146.00 = 1,335.66/x
  3. Step 3: Cross multiply
    2,279.36x = 3,146.00 × 1,335.66
  4. Step 4: Simplify right side
    2,279.36x = 4,201,967.88
  5. Step 5: Solve for x
    x = 4,201,967.88/2,279.36
  6. Step 6: Final answer
    x = 1,843.48

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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.