Home / 5,110.86-7,053.62-2,872.70

Finding the Fourth Proportional to 5,110.86, 7,053.62 and 2,872.70

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Solution

The fourth proportional to 5,110.86, 7,053.62 and 2,872.70 is: 3,964.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,110.86 : 7,053.62 = 2,872.70 : x
  2. Step 2: Convert to fraction form
    5,110.86/7,053.62 = 2,872.70/x
  3. Step 3: Cross multiply
    5,110.86x = 7,053.62 × 2,872.70
  4. Step 4: Simplify right side
    5,110.86x = 20,262,884.54
  5. Step 5: Solve for x
    x = 20,262,884.54/5,110.86
  6. Step 6: Final answer
    x = 3,964.67

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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.