Home / 4,661.96-6,987.16-2,161.64

Finding the Fourth Proportional to 4,661.96, 6,987.16 and 2,161.64

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Solution

The fourth proportional to 4,661.96, 6,987.16 and 2,161.64 is: 3,239.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,661.96 : 6,987.16 = 2,161.64 : x
  2. Step 2: Convert to fraction form
    4,661.96/6,987.16 = 2,161.64/x
  3. Step 3: Cross multiply
    4,661.96x = 6,987.16 × 2,161.64
  4. Step 4: Simplify right side
    4,661.96x = 15,103,705.41
  5. Step 5: Solve for x
    x = 15,103,705.41/4,661.96
  6. Step 6: Final answer
    x = 3,239.78

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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.