Home / 3,657.42-5,047.92-2,164.86

Finding the Fourth Proportional to 3,657.42, 5,047.92 and 2,164.86

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Solution

The fourth proportional to 3,657.42, 5,047.92 and 2,164.86 is: 2,987.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,657.42 : 5,047.92 = 2,164.86 : x
  2. Step 2: Convert to fraction form
    3,657.42/5,047.92 = 2,164.86/x
  3. Step 3: Cross multiply
    3,657.42x = 5,047.92 × 2,164.86
  4. Step 4: Simplify right side
    3,657.42x = 10,928,040.09
  5. Step 5: Solve for x
    x = 10,928,040.09/3,657.42
  6. Step 6: Final answer
    x = 2,987.91

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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.