Home / 3,139.62-4,326.51-2,837.58

Finding the Fourth Proportional to 3,139.62, 4,326.51 and 2,837.58

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Solution

The fourth proportional to 3,139.62, 4,326.51 and 2,837.58 is: 3,910.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.62 : 4,326.51 = 2,837.58 : x
  2. Step 2: Convert to fraction form
    3,139.62/4,326.51 = 2,837.58/x
  3. Step 3: Cross multiply
    3,139.62x = 4,326.51 × 2,837.58
  4. Step 4: Simplify right side
    3,139.62x = 12,276,818.25
  5. Step 5: Solve for x
    x = 12,276,818.25/3,139.62
  6. Step 6: Final answer
    x = 3,910.29

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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.