Home / 5,260.62-7,890.39-3,306.90

Finding the Fourth Proportional to 5,260.62, 7,890.39 and 3,306.90

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Solution

The fourth proportional to 5,260.62, 7,890.39 and 3,306.90 is: 4,960.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,260.62 : 7,890.39 = 3,306.90 : x
  2. Step 2: Convert to fraction form
    5,260.62/7,890.39 = 3,306.90/x
  3. Step 3: Cross multiply
    5,260.62x = 7,890.39 × 3,306.90
  4. Step 4: Simplify right side
    5,260.62x = 26,092,730.69
  5. Step 5: Solve for x
    x = 26,092,730.69/5,260.62
  6. Step 6: Final answer
    x = 4,960.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.