Home / 3,261.11-4,891.85-1,313.06

Finding the Fourth Proportional to 3,261.11, 4,891.85 and 1,313.06

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Solution

The fourth proportional to 3,261.11, 4,891.85 and 1,313.06 is: 1,969.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261.11 : 4,891.85 = 1,313.06 : x
  2. Step 2: Convert to fraction form
    3,261.11/4,891.85 = 1,313.06/x
  3. Step 3: Cross multiply
    3,261.11x = 4,891.85 × 1,313.06
  4. Step 4: Simplify right side
    3,261.11x = 6,423,286.00
  5. Step 5: Solve for x
    x = 6,423,286.00/3,261.11
  6. Step 6: Final answer
    x = 1,969.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.