Home / 2,576.82-3,555.96-1,397.88

Finding the Fourth Proportional to 2,576.82, 3,555.96 and 1,397.88

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Solution

The fourth proportional to 2,576.82, 3,555.96 and 1,397.88 is: 1,929.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.82 : 3,555.96 = 1,397.88 : x
  2. Step 2: Convert to fraction form
    2,576.82/3,555.96 = 1,397.88/x
  3. Step 3: Cross multiply
    2,576.82x = 3,555.96 × 1,397.88
  4. Step 4: Simplify right side
    2,576.82x = 4,970,805.36
  5. Step 5: Solve for x
    x = 4,970,805.36/2,576.82
  6. Step 6: Final answer
    x = 1,929.05

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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.