Home / 2,861.66-3,949.44-1,682.84

Finding the Fourth Proportional to 2,861.66, 3,949.44 and 1,682.84

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Solution

The fourth proportional to 2,861.66, 3,949.44 and 1,682.84 is: 2,322.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.66 : 3,949.44 = 1,682.84 : x
  2. Step 2: Convert to fraction form
    2,861.66/3,949.44 = 1,682.84/x
  3. Step 3: Cross multiply
    2,861.66x = 3,949.44 × 1,682.84
  4. Step 4: Simplify right side
    2,861.66x = 6,646,275.61
  5. Step 5: Solve for x
    x = 6,646,275.61/2,861.66
  6. Step 6: Final answer
    x = 2,322.52

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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.