Home / 2,691.58-4,031.69-1,231.96

Finding the Fourth Proportional to 2,691.58, 4,031.69 and 1,231.96

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Solution

The fourth proportional to 2,691.58, 4,031.69 and 1,231.96 is: 1,845.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.58 : 4,031.69 = 1,231.96 : x
  2. Step 2: Convert to fraction form
    2,691.58/4,031.69 = 1,231.96/x
  3. Step 3: Cross multiply
    2,691.58x = 4,031.69 × 1,231.96
  4. Step 4: Simplify right side
    2,691.58x = 4,966,880.81
  5. Step 5: Solve for x
    x = 4,966,880.81/2,691.58
  6. Step 6: Final answer
    x = 1,845.34

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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.