Home / 3,431.45-5,149.78-2,376.67

Finding the Fourth Proportional to 3,431.45, 5,149.78 and 2,376.67

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Solution

The fourth proportional to 3,431.45, 5,149.78 and 2,376.67 is: 3,566.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.45 : 5,149.78 = 2,376.67 : x
  2. Step 2: Convert to fraction form
    3,431.45/5,149.78 = 2,376.67/x
  3. Step 3: Cross multiply
    3,431.45x = 5,149.78 × 2,376.67
  4. Step 4: Simplify right side
    3,431.45x = 12,239,337.04
  5. Step 5: Solve for x
    x = 12,239,337.04/3,431.45
  6. Step 6: Final answer
    x = 3,566.81

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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.