Home / 7,937.46-11,906.16-2,391.21

Finding the Fourth Proportional to 7,937.46, 11,906.16 and 2,391.21

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Solution

The fourth proportional to 7,937.46, 11,906.16 and 2,391.21 is: 3,586.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,937.46 : 11,906.16 = 2,391.21 : x
  2. Step 2: Convert to fraction form
    7,937.46/11,906.16 = 2,391.21/x
  3. Step 3: Cross multiply
    7,937.46x = 11,906.16 × 2,391.21
  4. Step 4: Simplify right side
    7,937.46x = 28,470,128.85
  5. Step 5: Solve for x
    x = 28,470,128.85/7,937.46
  6. Step 6: Final answer
    x = 3,586.81

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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.