Home / 2,814.78-4,221.45-1,332.54

Finding the Fourth Proportional to 2,814.78, 4,221.45 and 1,332.54

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Solution

The fourth proportional to 2,814.78, 4,221.45 and 1,332.54 is: 1,998.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.78 : 4,221.45 = 1,332.54 : x
  2. Step 2: Convert to fraction form
    2,814.78/4,221.45 = 1,332.54/x
  3. Step 3: Cross multiply
    2,814.78x = 4,221.45 × 1,332.54
  4. Step 4: Simplify right side
    2,814.78x = 5,625,250.98
  5. Step 5: Solve for x
    x = 5,625,250.98/2,814.78
  6. Step 6: Final answer
    x = 1,998.47

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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.