Home / 2,284.18-3,426.46-640.72

Finding the Fourth Proportional to 2,284.18, 3,426.46 and 640.72

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Solution

The fourth proportional to 2,284.18, 3,426.46 and 640.72 is: 961.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,284.18 : 3,426.46 = 640.72 : x
  2. Step 2: Convert to fraction form
    2,284.18/3,426.46 = 640.72/x
  3. Step 3: Cross multiply
    2,284.18x = 3,426.46 × 640.72
  4. Step 4: Simplify right side
    2,284.18x = 2,195,401.45
  5. Step 5: Solve for x
    x = 2,195,401.45/2,284.18
  6. Step 6: Final answer
    x = 961.13

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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.