Home / 5,151.97-7,109.66-2,913.87

Finding the Fourth Proportional to 5,151.97, 7,109.66 and 2,913.87

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Solution

The fourth proportional to 5,151.97, 7,109.66 and 2,913.87 is: 4,021.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.97 : 7,109.66 = 2,913.87 : x
  2. Step 2: Convert to fraction form
    5,151.97/7,109.66 = 2,913.87/x
  3. Step 3: Cross multiply
    5,151.97x = 7,109.66 × 2,913.87
  4. Step 4: Simplify right side
    5,151.97x = 20,716,624.98
  5. Step 5: Solve for x
    x = 20,716,624.98/5,151.97
  6. Step 6: Final answer
    x = 4,021.11

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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.