Home / 5,286.13-7,294.37-3,161.23

Finding the Fourth Proportional to 5,286.13, 7,294.37 and 3,161.23

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Solution

The fourth proportional to 5,286.13, 7,294.37 and 3,161.23 is: 4,362.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.13 : 7,294.37 = 3,161.23 : x
  2. Step 2: Convert to fraction form
    5,286.13/7,294.37 = 3,161.23/x
  3. Step 3: Cross multiply
    5,286.13x = 7,294.37 × 3,161.23
  4. Step 4: Simplify right side
    5,286.13x = 23,059,181.28
  5. Step 5: Solve for x
    x = 23,059,181.28/5,286.13
  6. Step 6: Final answer
    x = 4,362.20

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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.