Home / 5,286.56-7,295.27-2,928.65

Finding the Fourth Proportional to 5,286.56, 7,295.27 and 2,928.65

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Solution

The fourth proportional to 5,286.56, 7,295.27 and 2,928.65 is: 4,041.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.56 : 7,295.27 = 2,928.65 : x
  2. Step 2: Convert to fraction form
    5,286.56/7,295.27 = 2,928.65/x
  3. Step 3: Cross multiply
    5,286.56x = 7,295.27 × 2,928.65
  4. Step 4: Simplify right side
    5,286.56x = 21,365,241.37
  5. Step 5: Solve for x
    x = 21,365,241.37/5,286.56
  6. Step 6: Final answer
    x = 4,041.43

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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.