Home / 3,519.84-5,276.40-1,327.92

Finding the Fourth Proportional to 3,519.84, 5,276.40 and 1,327.92

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Solution

The fourth proportional to 3,519.84, 5,276.40 and 1,327.92 is: 1,990.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.84 : 5,276.40 = 1,327.92 : x
  2. Step 2: Convert to fraction form
    3,519.84/5,276.40 = 1,327.92/x
  3. Step 3: Cross multiply
    3,519.84x = 5,276.40 × 1,327.92
  4. Step 4: Simplify right side
    3,519.84x = 7,006,637.09
  5. Step 5: Solve for x
    x = 7,006,637.09/3,519.84
  6. Step 6: Final answer
    x = 1,990.61

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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.