Home / 5,417.28-8,123.09-1,906.61

Finding the Fourth Proportional to 5,417.28, 8,123.09 and 1,906.61

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Solution

The fourth proportional to 5,417.28, 8,123.09 and 1,906.61 is: 2,858.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,417.28 : 8,123.09 = 1,906.61 : x
  2. Step 2: Convert to fraction form
    5,417.28/8,123.09 = 1,906.61/x
  3. Step 3: Cross multiply
    5,417.28x = 8,123.09 × 1,906.61
  4. Step 4: Simplify right side
    5,417.28x = 15,487,514.48
  5. Step 5: Solve for x
    x = 15,487,514.48/5,417.28
  6. Step 6: Final answer
    x = 2,858.91

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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.