Home / 5,186.82-7,157.86-2,828.94

Finding the Fourth Proportional to 5,186.82, 7,157.86 and 2,828.94

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Solution

The fourth proportional to 5,186.82, 7,157.86 and 2,828.94 is: 3,903.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.82 : 7,157.86 = 2,828.94 : x
  2. Step 2: Convert to fraction form
    5,186.82/7,157.86 = 2,828.94/x
  3. Step 3: Cross multiply
    5,186.82x = 7,157.86 × 2,828.94
  4. Step 4: Simplify right side
    5,186.82x = 20,249,156.47
  5. Step 5: Solve for x
    x = 20,249,156.47/5,186.82
  6. Step 6: Final answer
    x = 3,903.96

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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.