Home / 5,125.26-7,683.09-2,781.83

Finding the Fourth Proportional to 5,125.26, 7,683.09 and 2,781.83

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Solution

The fourth proportional to 5,125.26, 7,683.09 and 2,781.83 is: 4,170.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.26 : 7,683.09 = 2,781.83 : x
  2. Step 2: Convert to fraction form
    5,125.26/7,683.09 = 2,781.83/x
  3. Step 3: Cross multiply
    5,125.26x = 7,683.09 × 2,781.83
  4. Step 4: Simplify right side
    5,125.26x = 21,373,011.84
  5. Step 5: Solve for x
    x = 21,373,011.84/5,125.26
  6. Step 6: Final answer
    x = 4,170.13

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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.