Home / 2,861.62-3,948.77-1,619.62

Finding the Fourth Proportional to 2,861.62, 3,948.77 and 1,619.62

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Solution

The fourth proportional to 2,861.62, 3,948.77 and 1,619.62 is: 2,234.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.62 : 3,948.77 = 1,619.62 : x
  2. Step 2: Convert to fraction form
    2,861.62/3,948.77 = 1,619.62/x
  3. Step 3: Cross multiply
    2,861.62x = 3,948.77 × 1,619.62
  4. Step 4: Simplify right side
    2,861.62x = 6,395,506.87
  5. Step 5: Solve for x
    x = 6,395,506.87/2,861.62
  6. Step 6: Final answer
    x = 2,234.93

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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.