Home / 7,126.77-9,834.95-3,982.96

Finding the Fourth Proportional to 7,126.77, 9,834.95 and 3,982.96

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Solution

The fourth proportional to 7,126.77, 9,834.95 and 3,982.96 is: 5,496.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,126.77 : 9,834.95 = 3,982.96 : x
  2. Step 2: Convert to fraction form
    7,126.77/9,834.95 = 3,982.96/x
  3. Step 3: Cross multiply
    7,126.77x = 9,834.95 × 3,982.96
  4. Step 4: Simplify right side
    7,126.77x = 39,172,173.23
  5. Step 5: Solve for x
    x = 39,172,173.23/7,126.77
  6. Step 6: Final answer
    x = 5,496.49

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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.