Home / 5,186.26-7,157.01-2,828.35

Finding the Fourth Proportional to 5,186.26, 7,157.01 and 2,828.35

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Solution

The fourth proportional to 5,186.26, 7,157.01 and 2,828.35 is: 3,903.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.26 : 7,157.01 = 2,828.35 : x
  2. Step 2: Convert to fraction form
    5,186.26/7,157.01 = 2,828.35/x
  3. Step 3: Cross multiply
    5,186.26x = 7,157.01 × 2,828.35
  4. Step 4: Simplify right side
    5,186.26x = 20,242,529.23
  5. Step 5: Solve for x
    x = 20,242,529.23/5,186.26
  6. Step 6: Final answer
    x = 3,903.11

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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.