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Finding the Fourth Proportional to 2,751.95, 3,798.30 and 2,309.09

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Solution

The fourth proportional to 2,751.95, 3,798.30 and 2,309.09 is: 3,187.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,751.95 : 3,798.30 = 2,309.09 : x
  2. Step 2: Convert to fraction form
    2,751.95/3,798.30 = 2,309.09/x
  3. Step 3: Cross multiply
    2,751.95x = 3,798.30 × 2,309.09
  4. Step 4: Simplify right side
    2,751.95x = 8,770,597.56
  5. Step 5: Solve for x
    x = 8,770,597.56/2,751.95
  6. Step 6: Final answer
    x = 3,187.05

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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.