Home / 3,178.62-4,762.04-2,661.98

Finding the Fourth Proportional to 3,178.62, 4,762.04 and 2,661.98

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Solution

The fourth proportional to 3,178.62, 4,762.04 and 2,661.98 is: 3,988.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.62 : 4,762.04 = 2,661.98 : x
  2. Step 2: Convert to fraction form
    3,178.62/4,762.04 = 2,661.98/x
  3. Step 3: Cross multiply
    3,178.62x = 4,762.04 × 2,661.98
  4. Step 4: Simplify right side
    3,178.62x = 12,676,418.12
  5. Step 5: Solve for x
    x = 12,676,418.12/3,178.62
  6. Step 6: Final answer
    x = 3,988.03

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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.