Home / 2,576.92-3,556.14-1,397.92

Finding the Fourth Proportional to 2,576.92, 3,556.14 and 1,397.92

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Solution

The fourth proportional to 2,576.92, 3,556.14 and 1,397.92 is: 1,929.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.92 : 3,556.14 = 1,397.92 : x
  2. Step 2: Convert to fraction form
    2,576.92/3,556.14 = 1,397.92/x
  3. Step 3: Cross multiply
    2,576.92x = 3,556.14 × 1,397.92
  4. Step 4: Simplify right side
    2,576.92x = 4,971,199.23
  5. Step 5: Solve for x
    x = 4,971,199.23/2,576.92
  6. Step 6: Final answer
    x = 1,929.12

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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.