Home / 3,376.20-5,061.90-1,295.40

Finding the Fourth Proportional to 3,376.20, 5,061.90 and 1,295.40

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Solution

The fourth proportional to 3,376.20, 5,061.90 and 1,295.40 is: 1,942.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,376.20 : 5,061.90 = 1,295.40 : x
  2. Step 2: Convert to fraction form
    3,376.20/5,061.90 = 1,295.40/x
  3. Step 3: Cross multiply
    3,376.20x = 5,061.90 × 1,295.40
  4. Step 4: Simplify right side
    3,376.20x = 6,557,185.26
  5. Step 5: Solve for x
    x = 6,557,185.26/3,376.20
  6. Step 6: Final answer
    x = 1,942.18

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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.