Home / 5,286.80-7,288.28-3,606.06

Finding the Fourth Proportional to 5,286.80, 7,288.28 and 3,606.06

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Solution

The fourth proportional to 5,286.80, 7,288.28 and 3,606.06 is: 4,971.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.80 : 7,288.28 = 3,606.06 : x
  2. Step 2: Convert to fraction form
    5,286.80/7,288.28 = 3,606.06/x
  3. Step 3: Cross multiply
    5,286.80x = 7,288.28 × 3,606.06
  4. Step 4: Simplify right side
    5,286.80x = 26,281,974.98
  5. Step 5: Solve for x
    x = 26,281,974.98/5,286.80
  6. Step 6: Final answer
    x = 4,971.24

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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.