Home / 5,614.74-8,419.38-2,105.28

Finding the Fourth Proportional to 5,614.74, 8,419.38 and 2,105.28

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Solution

The fourth proportional to 5,614.74, 8,419.38 and 2,105.28 is: 3,156.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,614.74 : 8,419.38 = 2,105.28 : x
  2. Step 2: Convert to fraction form
    5,614.74/8,419.38 = 2,105.28/x
  3. Step 3: Cross multiply
    5,614.74x = 8,419.38 × 2,105.28
  4. Step 4: Simplify right side
    5,614.74x = 17,725,152.33
  5. Step 5: Solve for x
    x = 17,725,152.33/5,614.74
  6. Step 6: Final answer
    x = 3,156.90

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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.