Home / 2,798.10-3,861.94-2,133.76

Finding the Fourth Proportional to 2,798.10, 3,861.94 and 2,133.76

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Solution

The fourth proportional to 2,798.10, 3,861.94 and 2,133.76 is: 2,945.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,798.10 : 3,861.94 = 2,133.76 : x
  2. Step 2: Convert to fraction form
    2,798.10/3,861.94 = 2,133.76/x
  3. Step 3: Cross multiply
    2,798.10x = 3,861.94 × 2,133.76
  4. Step 4: Simplify right side
    2,798.10x = 8,240,453.09
  5. Step 5: Solve for x
    x = 8,240,453.09/2,798.10
  6. Step 6: Final answer
    x = 2,945.02

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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.