Home / 3,290.81-4,935.96-1,069.64

Finding the Fourth Proportional to 3,290.81, 4,935.96 and 1,069.64

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Solution

The fourth proportional to 3,290.81, 4,935.96 and 1,069.64 is: 1,604.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,290.81 : 4,935.96 = 1,069.64 : x
  2. Step 2: Convert to fraction form
    3,290.81/4,935.96 = 1,069.64/x
  3. Step 3: Cross multiply
    3,290.81x = 4,935.96 × 1,069.64
  4. Step 4: Simplify right side
    3,290.81x = 5,279,679.91
  5. Step 5: Solve for x
    x = 5,279,679.91/3,290.81
  6. Step 6: Final answer
    x = 1,604.37

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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.