Home / 7,125.99-9,834.80-3,982.83

Finding the Fourth Proportional to 7,125.99, 9,834.80 and 3,982.83

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Solution

The fourth proportional to 7,125.99, 9,834.80 and 3,982.83 is: 5,496.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,125.99 : 9,834.80 = 3,982.83 : x
  2. Step 2: Convert to fraction form
    7,125.99/9,834.80 = 3,982.83/x
  3. Step 3: Cross multiply
    7,125.99x = 9,834.80 × 3,982.83
  4. Step 4: Simplify right side
    7,125.99x = 39,170,316.57
  5. Step 5: Solve for x
    x = 39,170,316.57/7,125.99
  6. Step 6: Final answer
    x = 5,496.82

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1.5x scale

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.