Home / 5,285-7,286.67-3,393.25

Finding the Fourth Proportional to 5,285, 7,286.67 and 3,393.25

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Solution

The fourth proportional to 5,285, 7,286.67 and 3,393.25 is: 4,678.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,285 : 7,286.67 = 3,393.25 : x
  2. Step 2: Convert to fraction form
    5,285/7,286.67 = 3,393.25/x
  3. Step 3: Cross multiply
    5,285x = 7,286.67 × 3,393.25
  4. Step 4: Simplify right side
    5,285x = 24,725,492.98
  5. Step 5: Solve for x
    x = 24,725,492.98/5,285
  6. Step 6: Final answer
    x = 4,678.43

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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.