Home / 3,381.35-5,068.25-1,405.88

Finding the Fourth Proportional to 3,381.35, 5,068.25 and 1,405.88

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Solution

The fourth proportional to 3,381.35, 5,068.25 and 1,405.88 is: 2,107.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,381.35 : 5,068.25 = 1,405.88 : x
  2. Step 2: Convert to fraction form
    3,381.35/5,068.25 = 1,405.88/x
  3. Step 3: Cross multiply
    3,381.35x = 5,068.25 × 1,405.88
  4. Step 4: Simplify right side
    3,381.35x = 7,125,318.94
  5. Step 5: Solve for x
    x = 7,125,318.94/3,381.35
  6. Step 6: Final answer
    x = 2,107.24

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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.