Home / 5,138.17-7,696.45-5,079.85

Finding the Fourth Proportional to 5,138.17, 7,696.45 and 5,079.85

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Solution

The fourth proportional to 5,138.17, 7,696.45 and 5,079.85 is: 7,609.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138.17 : 7,696.45 = 5,079.85 : x
  2. Step 2: Convert to fraction form
    5,138.17/7,696.45 = 5,079.85/x
  3. Step 3: Cross multiply
    5,138.17x = 7,696.45 × 5,079.85
  4. Step 4: Simplify right side
    5,138.17x = 39,096,798.64
  5. Step 5: Solve for x
    x = 39,096,798.64/5,138.17
  6. Step 6: Final answer
    x = 7,609.09

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1.5x scale

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.