Home / 5,186.72-7,767.60-3,236.48

Finding the Fourth Proportional to 5,186.72, 7,767.60 and 3,236.48

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Solution

The fourth proportional to 5,186.72, 7,767.60 and 3,236.48 is: 4,846.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.72 : 7,767.60 = 3,236.48 : x
  2. Step 2: Convert to fraction form
    5,186.72/7,767.60 = 3,236.48/x
  3. Step 3: Cross multiply
    5,186.72x = 7,767.60 × 3,236.48
  4. Step 4: Simplify right side
    5,186.72x = 25,139,682.05
  5. Step 5: Solve for x
    x = 25,139,682.05/5,186.72
  6. Step 6: Final answer
    x = 4,846.93

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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.