Home / 2,284.23-3,426.07-640.91

Finding the Fourth Proportional to 2,284.23, 3,426.07 and 640.91

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Solution

The fourth proportional to 2,284.23, 3,426.07 and 640.91 is: 961.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,284.23 : 3,426.07 = 640.91 : x
  2. Step 2: Convert to fraction form
    2,284.23/3,426.07 = 640.91/x
  3. Step 3: Cross multiply
    2,284.23x = 3,426.07 × 640.91
  4. Step 4: Simplify right side
    2,284.23x = 2,195,812.49
  5. Step 5: Solve for x
    x = 2,195,812.49/2,284.23
  6. Step 6: Final answer
    x = 961.29

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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.