Home / 5,126.28-7,684.57-2,782.83

Finding the Fourth Proportional to 5,126.28, 7,684.57 and 2,782.83

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Solution

The fourth proportional to 5,126.28, 7,684.57 and 2,782.83 is: 4,171.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,126.28 : 7,684.57 = 2,782.83 : x
  2. Step 2: Convert to fraction form
    5,126.28/7,684.57 = 2,782.83/x
  3. Step 3: Cross multiply
    5,126.28x = 7,684.57 × 2,782.83
  4. Step 4: Simplify right side
    5,126.28x = 21,384,851.93
  5. Step 5: Solve for x
    x = 21,384,851.93/5,126.28
  6. Step 6: Final answer
    x = 4,171.61

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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.