Home / 5,178.20-7,771.26-3,795.16

Finding the Fourth Proportional to 5,178.20, 7,771.26 and 3,795.16

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Solution

The fourth proportional to 5,178.20, 7,771.26 and 3,795.16 is: 5,695.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.20 : 7,771.26 = 3,795.16 : x
  2. Step 2: Convert to fraction form
    5,178.20/7,771.26 = 3,795.16/x
  3. Step 3: Cross multiply
    5,178.20x = 7,771.26 × 3,795.16
  4. Step 4: Simplify right side
    5,178.20x = 29,493,175.10
  5. Step 5: Solve for x
    x = 29,493,175.10/5,178.20
  6. Step 6: Final answer
    x = 5,695.64

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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.