Home / 4,951.40-7,431.30-2,031.80

Finding the Fourth Proportional to 4,951.40, 7,431.30 and 2,031.80

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Solution

The fourth proportional to 4,951.40, 7,431.30 and 2,031.80 is: 3,049.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,951.40 : 7,431.30 = 2,031.80 : x
  2. Step 2: Convert to fraction form
    4,951.40/7,431.30 = 2,031.80/x
  3. Step 3: Cross multiply
    4,951.40x = 7,431.30 × 2,031.80
  4. Step 4: Simplify right side
    4,951.40x = 15,098,915.34
  5. Step 5: Solve for x
    x = 15,098,915.34/4,951.40
  6. Step 6: Final answer
    x = 3,049.42

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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.