Home / 2,576.85-3,556.02-1,397.89

Finding the Fourth Proportional to 2,576.85, 3,556.02 and 1,397.89

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Solution

The fourth proportional to 2,576.85, 3,556.02 and 1,397.89 is: 1,929.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.85 : 3,556.02 = 1,397.89 : x
  2. Step 2: Convert to fraction form
    2,576.85/3,556.02 = 1,397.89/x
  3. Step 3: Cross multiply
    2,576.85x = 3,556.02 × 1,397.89
  4. Step 4: Simplify right side
    2,576.85x = 4,970,924.80
  5. Step 5: Solve for x
    x = 4,970,924.80/2,576.85
  6. Step 6: Final answer
    x = 1,929.07

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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.