Home / 5,286.75-7,292.34-3,397.70

Finding the Fourth Proportional to 5,286.75, 7,292.34 and 3,397.70

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Solution

The fourth proportional to 5,286.75, 7,292.34 and 3,397.70 is: 4,686.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.75 : 7,292.34 = 3,397.70 : x
  2. Step 2: Convert to fraction form
    5,286.75/7,292.34 = 3,397.70/x
  3. Step 3: Cross multiply
    5,286.75x = 7,292.34 × 3,397.70
  4. Step 4: Simplify right side
    5,286.75x = 24,777,147.16
  5. Step 5: Solve for x
    x = 24,777,147.16/5,286.75
  6. Step 6: Final answer
    x = 4,686.65

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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.