Home / 3,316.62-4,976.42-1,672.28

Finding the Fourth Proportional to 3,316.62, 4,976.42 and 1,672.28

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Solution

The fourth proportional to 3,316.62, 4,976.42 and 1,672.28 is: 2,509.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,316.62 : 4,976.42 = 1,672.28 : x
  2. Step 2: Convert to fraction form
    3,316.62/4,976.42 = 1,672.28/x
  3. Step 3: Cross multiply
    3,316.62x = 4,976.42 × 1,672.28
  4. Step 4: Simplify right side
    3,316.62x = 8,321,967.64
  5. Step 5: Solve for x
    x = 8,321,967.64/3,316.62
  6. Step 6: Final answer
    x = 2,509.17

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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.