Home / 7,126.38-9,834.40-3,982.56

Finding the Fourth Proportional to 7,126.38, 9,834.40 and 3,982.56

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Solution

The fourth proportional to 7,126.38, 9,834.40 and 3,982.56 is: 5,495.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,126.38 : 9,834.40 = 3,982.56 : x
  2. Step 2: Convert to fraction form
    7,126.38/9,834.40 = 3,982.56/x
  3. Step 3: Cross multiply
    7,126.38x = 9,834.40 × 3,982.56
  4. Step 4: Simplify right side
    7,126.38x = 39,166,088.06
  5. Step 5: Solve for x
    x = 39,166,088.06/7,126.38
  6. Step 6: Final answer
    x = 5,495.93

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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.