Home / 3,133.82-4,322.87-2,605.30

Finding the Fourth Proportional to 3,133.82, 4,322.87 and 2,605.30

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Solution

The fourth proportional to 3,133.82, 4,322.87 and 2,605.30 is: 3,593.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,133.82 : 4,322.87 = 2,605.30 : x
  2. Step 2: Convert to fraction form
    3,133.82/4,322.87 = 2,605.30/x
  3. Step 3: Cross multiply
    3,133.82x = 4,322.87 × 2,605.30
  4. Step 4: Simplify right side
    3,133.82x = 11,262,359.15
  5. Step 5: Solve for x
    x = 11,262,359.15/3,133.82
  6. Step 6: Final answer
    x = 3,593.81

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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.