Home / 3,108.53-4,661.87-1,646.89

Finding the Fourth Proportional to 3,108.53, 4,661.87 and 1,646.89

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Solution

The fourth proportional to 3,108.53, 4,661.87 and 1,646.89 is: 2,469.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.53 : 4,661.87 = 1,646.89 : x
  2. Step 2: Convert to fraction form
    3,108.53/4,661.87 = 1,646.89/x
  3. Step 3: Cross multiply
    3,108.53x = 4,661.87 × 1,646.89
  4. Step 4: Simplify right side
    3,108.53x = 7,677,587.08
  5. Step 5: Solve for x
    x = 7,677,587.08/3,108.53
  6. Step 6: Final answer
    x = 2,469.84

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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.