Home / 5,102.44-7,651.90-1,981.71

Finding the Fourth Proportional to 5,102.44, 7,651.90 and 1,981.71

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Solution

The fourth proportional to 5,102.44, 7,651.90 and 1,981.71 is: 2,971.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,102.44 : 7,651.90 = 1,981.71 : x
  2. Step 2: Convert to fraction form
    5,102.44/7,651.90 = 1,981.71/x
  3. Step 3: Cross multiply
    5,102.44x = 7,651.90 × 1,981.71
  4. Step 4: Simplify right side
    5,102.44x = 15,163,846.75
  5. Step 5: Solve for x
    x = 15,163,846.75/5,102.44
  6. Step 6: Final answer
    x = 2,971.88

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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.