Home / 3,382.25-5,071.35-1,405.50

Finding the Fourth Proportional to 3,382.25, 5,071.35 and 1,405.50

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Solution

The fourth proportional to 3,382.25, 5,071.35 and 1,405.50 is: 2,107.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,382.25 : 5,071.35 = 1,405.50 : x
  2. Step 2: Convert to fraction form
    3,382.25/5,071.35 = 1,405.50/x
  3. Step 3: Cross multiply
    3,382.25x = 5,071.35 × 1,405.50
  4. Step 4: Simplify right side
    3,382.25x = 7,127,757.07
  5. Step 5: Solve for x
    x = 7,127,757.07/3,382.25
  6. Step 6: Final answer
    x = 2,107.40

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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.