Home / 3,291.42-4,539.60-1,964.84

Finding the Fourth Proportional to 3,291.42, 4,539.60 and 1,964.84

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Solution

The fourth proportional to 3,291.42, 4,539.60 and 1,964.84 is: 2,709.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,291.42 : 4,539.60 = 1,964.84 : x
  2. Step 2: Convert to fraction form
    3,291.42/4,539.60 = 1,964.84/x
  3. Step 3: Cross multiply
    3,291.42x = 4,539.60 × 1,964.84
  4. Step 4: Simplify right side
    3,291.42x = 8,919,587.66
  5. Step 5: Solve for x
    x = 8,919,587.66/3,291.42
  6. Step 6: Final answer
    x = 2,709.95

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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.