Home / 2,031.28-3,046.83-1,207.74

Finding the Fourth Proportional to 2,031.28, 3,046.83 and 1,207.74

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Solution

The fourth proportional to 2,031.28, 3,046.83 and 1,207.74 is: 1,811.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,031.28 : 3,046.83 = 1,207.74 : x
  2. Step 2: Convert to fraction form
    2,031.28/3,046.83 = 1,207.74/x
  3. Step 3: Cross multiply
    2,031.28x = 3,046.83 × 1,207.74
  4. Step 4: Simplify right side
    2,031.28x = 3,679,778.46
  5. Step 5: Solve for x
    x = 3,679,778.46/2,031.28
  6. Step 6: Final answer
    x = 1,811.56

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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.