Home / 10,286.92-15,430.94-2,890.79

Finding the Fourth Proportional to 10,286.92, 15,430.94 and 2,890.79

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Solution

The fourth proportional to 10,286.92, 15,430.94 and 2,890.79 is: 4,336.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,286.92 : 15,430.94 = 2,890.79 : x
  2. Step 2: Convert to fraction form
    10,286.92/15,430.94 = 2,890.79/x
  3. Step 3: Cross multiply
    10,286.92x = 15,430.94 × 2,890.79
  4. Step 4: Simplify right side
    10,286.92x = 44,607,584.14
  5. Step 5: Solve for x
    x = 44,607,584.14/10,286.92
  6. Step 6: Final answer
    x = 4,336.34

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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.