Home / 2,065.83-2,851.40-1,279.44

Finding the Fourth Proportional to 2,065.83, 2,851.40 and 1,279.44

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Solution

The fourth proportional to 2,065.83, 2,851.40 and 1,279.44 is: 1,765.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,065.83 : 2,851.40 = 1,279.44 : x
  2. Step 2: Convert to fraction form
    2,065.83/2,851.40 = 1,279.44/x
  3. Step 3: Cross multiply
    2,065.83x = 2,851.40 × 1,279.44
  4. Step 4: Simplify right side
    2,065.83x = 3,648,195.22
  5. Step 5: Solve for x
    x = 3,648,195.22/2,065.83
  6. Step 6: Final answer
    x = 1,765.97

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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.