Home / 3,942.65-5,913.98-2,186.82

Finding the Fourth Proportional to 3,942.65, 5,913.98 and 2,186.82

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Solution

The fourth proportional to 3,942.65, 5,913.98 and 2,186.82 is: 3,280.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.65 : 5,913.98 = 2,186.82 : x
  2. Step 2: Convert to fraction form
    3,942.65/5,913.98 = 2,186.82/x
  3. Step 3: Cross multiply
    3,942.65x = 5,913.98 × 2,186.82
  4. Step 4: Simplify right side
    3,942.65x = 12,932,798.81
  5. Step 5: Solve for x
    x = 12,932,798.81/3,942.65
  6. Step 6: Final answer
    x = 3,280.23

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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.