Home / 5,696.20-7,855.01-3,807.79

Finding the Fourth Proportional to 5,696.20, 7,855.01 and 3,807.79

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Solution

The fourth proportional to 5,696.20, 7,855.01 and 3,807.79 is: 5,250.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,696.20 : 7,855.01 = 3,807.79 : x
  2. Step 2: Convert to fraction form
    5,696.20/7,855.01 = 3,807.79/x
  3. Step 3: Cross multiply
    5,696.20x = 7,855.01 × 3,807.79
  4. Step 4: Simplify right side
    5,696.20x = 29,910,170.21
  5. Step 5: Solve for x
    x = 29,910,170.21/5,696.20
  6. Step 6: Final answer
    x = 5,250.90

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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.