Home / 4,661-6,985.80-2,192.54

Finding the Fourth Proportional to 4,661, 6,985.80 and 2,192.54

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Solution

The fourth proportional to 4,661, 6,985.80 and 2,192.54 is: 3,286.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,661 : 6,985.80 = 2,192.54 : x
  2. Step 2: Convert to fraction form
    4,661/6,985.80 = 2,192.54/x
  3. Step 3: Cross multiply
    4,661x = 6,985.80 × 2,192.54
  4. Step 4: Simplify right side
    4,661x = 15,316,645.93
  5. Step 5: Solve for x
    x = 15,316,645.93/4,661
  6. Step 6: Final answer
    x = 3,286.13

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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.