Home / 3,291.28-4,540.91-1,964.66

Finding the Fourth Proportional to 3,291.28, 4,540.91 and 1,964.66

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Solution

The fourth proportional to 3,291.28, 4,540.91 and 1,964.66 is: 2,710.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,291.28 : 4,540.91 = 1,964.66 : x
  2. Step 2: Convert to fraction form
    3,291.28/4,540.91 = 1,964.66/x
  3. Step 3: Cross multiply
    3,291.28x = 4,540.91 × 1,964.66
  4. Step 4: Simplify right side
    3,291.28x = 8,921,322.76
  5. Step 5: Solve for x
    x = 8,921,322.76/3,291.28
  6. Step 6: Final answer
    x = 2,710.59

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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.