Home / 2,689.02-4,031.97-1,227.39

Finding the Fourth Proportional to 2,689.02, 4,031.97 and 1,227.39

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Solution

The fourth proportional to 2,689.02, 4,031.97 and 1,227.39 is: 1,840.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.02 : 4,031.97 = 1,227.39 : x
  2. Step 2: Convert to fraction form
    2,689.02/4,031.97 = 1,227.39/x
  3. Step 3: Cross multiply
    2,689.02x = 4,031.97 × 1,227.39
  4. Step 4: Simplify right side
    2,689.02x = 4,948,799.66
  5. Step 5: Solve for x
    x = 4,948,799.66/2,689.02
  6. Step 6: Final answer
    x = 1,840.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.