Home / 3,366.72-4,648.19-2,172.31

Finding the Fourth Proportional to 3,366.72, 4,648.19 and 2,172.31

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Solution

The fourth proportional to 3,366.72, 4,648.19 and 2,172.31 is: 2,999.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,366.72 : 4,648.19 = 2,172.31 : x
  2. Step 2: Convert to fraction form
    3,366.72/4,648.19 = 2,172.31/x
  3. Step 3: Cross multiply
    3,366.72x = 4,648.19 × 2,172.31
  4. Step 4: Simplify right side
    3,366.72x = 10,097,287.14
  5. Step 5: Solve for x
    x = 10,097,287.14/3,366.72
  6. Step 6: Final answer
    x = 2,999.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.