Home / 5,186.83-7,157.79-2,828.97

Finding the Fourth Proportional to 5,186.83, 7,157.79 and 2,828.97

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Solution

The fourth proportional to 5,186.83, 7,157.79 and 2,828.97 is: 3,903.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.83 : 7,157.79 = 2,828.97 : x
  2. Step 2: Convert to fraction form
    5,186.83/7,157.79 = 2,828.97/x
  3. Step 3: Cross multiply
    5,186.83x = 7,157.79 × 2,828.97
  4. Step 4: Simplify right side
    5,186.83x = 20,249,173.18
  5. Step 5: Solve for x
    x = 20,249,173.18/5,186.83
  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.