Home / 5,186.82-7,157.74-2,828.96

Finding the Fourth Proportional to 5,186.82, 7,157.74 and 2,828.96

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Solution

The fourth proportional to 5,186.82, 7,157.74 and 2,828.96 is: 3,903.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.82 : 7,157.74 = 2,828.96 : x
  2. Step 2: Convert to fraction form
    5,186.82/7,157.74 = 2,828.96/x
  3. Step 3: Cross multiply
    5,186.82x = 7,157.74 × 2,828.96
  4. Step 4: Simplify right side
    5,186.82x = 20,248,960.15
  5. Step 5: Solve for x
    x = 20,248,960.15/5,186.82
  6. Step 6: Final answer
    x = 3,903.93

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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.