Home / 3,991.11-5,507.70-2,313.06

Finding the Fourth Proportional to 3,991.11, 5,507.70 and 2,313.06

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Solution

The fourth proportional to 3,991.11, 5,507.70 and 2,313.06 is: 3,192.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991.11 : 5,507.70 = 2,313.06 : x
  2. Step 2: Convert to fraction form
    3,991.11/5,507.70 = 2,313.06/x
  3. Step 3: Cross multiply
    3,991.11x = 5,507.70 × 2,313.06
  4. Step 4: Simplify right side
    3,991.11x = 12,739,640.56
  5. Step 5: Solve for x
    x = 12,739,640.56/3,991.11
  6. Step 6: Final answer
    x = 3,192.00

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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.