Home / 5,149.71-7,106.18-2,911.82

Finding the Fourth Proportional to 5,149.71, 7,106.18 and 2,911.82

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Solution

The fourth proportional to 5,149.71, 7,106.18 and 2,911.82 is: 4,018.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.71 : 7,106.18 = 2,911.82 : x
  2. Step 2: Convert to fraction form
    5,149.71/7,106.18 = 2,911.82/x
  3. Step 3: Cross multiply
    5,149.71x = 7,106.18 × 2,911.82
  4. Step 4: Simplify right side
    5,149.71x = 20,691,866.96
  5. Step 5: Solve for x
    x = 20,691,866.96/5,149.71
  6. Step 6: Final answer
    x = 4,018.06

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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.