Home / 2,814.78-4,222.50-1,171.11

Finding the Fourth Proportional to 2,814.78, 4,222.50 and 1,171.11

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Solution

The fourth proportional to 2,814.78, 4,222.50 and 1,171.11 is: 1,756.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.78 : 4,222.50 = 1,171.11 : x
  2. Step 2: Convert to fraction form
    2,814.78/4,222.50 = 1,171.11/x
  3. Step 3: Cross multiply
    2,814.78x = 4,222.50 × 1,171.11
  4. Step 4: Simplify right side
    2,814.78x = 4,945,011.98
  5. Step 5: Solve for x
    x = 4,945,011.98/2,814.78
  6. Step 6: Final answer
    x = 1,756.80

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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.