Home / 5,186.27-7,157.09-2,828.45

Finding the Fourth Proportional to 5,186.27, 7,157.09 and 2,828.45

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Solution

The fourth proportional to 5,186.27, 7,157.09 and 2,828.45 is: 3,903.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.27 : 7,157.09 = 2,828.45 : x
  2. Step 2: Convert to fraction form
    5,186.27/7,157.09 = 2,828.45/x
  3. Step 3: Cross multiply
    5,186.27x = 7,157.09 × 2,828.45
  4. Step 4: Simplify right side
    5,186.27x = 20,243,471.21
  5. Step 5: Solve for x
    x = 20,243,471.21/5,186.27
  6. Step 6: Final answer
    x = 3,903.28

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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.