Home / 1,861.19-2,792.22-628.57

Finding the Fourth Proportional to 1,861.19, 2,792.22 and 628.57

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Solution

The fourth proportional to 1,861.19, 2,792.22 and 628.57 is: 943.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861.19 : 2,792.22 = 628.57 : x
  2. Step 2: Convert to fraction form
    1,861.19/2,792.22 = 628.57/x
  3. Step 3: Cross multiply
    1,861.19x = 2,792.22 × 628.57
  4. Step 4: Simplify right side
    1,861.19x = 1,755,105.73
  5. Step 5: Solve for x
    x = 1,755,105.73/1,861.19
  6. Step 6: Final answer
    x = 943.00

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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.