Home / 7,125.89-9,834.34-3,982.69

Finding the Fourth Proportional to 7,125.89, 9,834.34 and 3,982.69

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Solution

The fourth proportional to 7,125.89, 9,834.34 and 3,982.69 is: 5,496.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,125.89 : 9,834.34 = 3,982.69 : x
  2. Step 2: Convert to fraction form
    7,125.89/9,834.34 = 3,982.69/x
  3. Step 3: Cross multiply
    7,125.89x = 9,834.34 × 3,982.69
  4. Step 4: Simplify right side
    7,125.89x = 39,167,070.86
  5. Step 5: Solve for x
    x = 39,167,070.86/7,125.89
  6. Step 6: Final answer
    x = 5,496.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.