Home / 2,348.43-3,239.91-1,640.09

Finding the Fourth Proportional to 2,348.43, 3,239.91 and 1,640.09

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Solution

The fourth proportional to 2,348.43, 3,239.91 and 1,640.09 is: 2,262.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,348.43 : 3,239.91 = 1,640.09 : x
  2. Step 2: Convert to fraction form
    2,348.43/3,239.91 = 1,640.09/x
  3. Step 3: Cross multiply
    2,348.43x = 3,239.91 × 1,640.09
  4. Step 4: Simplify right side
    2,348.43x = 5,313,727.79
  5. Step 5: Solve for x
    x = 5,313,727.79/2,348.43
  6. Step 6: Final answer
    x = 2,262.67

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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.