Home / 2,889.52-4,332.45-1,222.78

Finding the Fourth Proportional to 2,889.52, 4,332.45 and 1,222.78

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Solution

The fourth proportional to 2,889.52, 4,332.45 and 1,222.78 is: 1,833.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,889.52 : 4,332.45 = 1,222.78 : x
  2. Step 2: Convert to fraction form
    2,889.52/4,332.45 = 1,222.78/x
  3. Step 3: Cross multiply
    2,889.52x = 4,332.45 × 1,222.78
  4. Step 4: Simplify right side
    2,889.52x = 5,297,633.21
  5. Step 5: Solve for x
    x = 5,297,633.21/2,889.52
  6. Step 6: Final answer
    x = 1,833.40

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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.