Home / 2,861.30-4,258.44-2,756

Finding the Fourth Proportional to 2,861.30, 4,258.44 and 2,756

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Solution

The fourth proportional to 2,861.30, 4,258.44 and 2,756 is: 4,101.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.30 : 4,258.44 = 2,756 : x
  2. Step 2: Convert to fraction form
    2,861.30/4,258.44 = 2,756/x
  3. Step 3: Cross multiply
    2,861.30x = 4,258.44 × 2,756
  4. Step 4: Simplify right side
    2,861.30x = 11,736,260.64
  5. Step 5: Solve for x
    x = 11,736,260.64/2,861.30
  6. Step 6: Final answer
    x = 4,101.72

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.