Home / 2,861.33-3,949.97-1,854.09

Finding the Fourth Proportional to 2,861.33, 3,949.97 and 1,854.09

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Solution

The fourth proportional to 2,861.33, 3,949.97 and 1,854.09 is: 2,559.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.33 : 3,949.97 = 1,854.09 : x
  2. Step 2: Convert to fraction form
    2,861.33/3,949.97 = 1,854.09/x
  3. Step 3: Cross multiply
    2,861.33x = 3,949.97 × 1,854.09
  4. Step 4: Simplify right side
    2,861.33x = 7,323,590.61
  5. Step 5: Solve for x
    x = 7,323,590.61/2,861.33
  6. Step 6: Final answer
    x = 2,559.51

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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.