Home / 3,186.46-4,782.57-1,338.94

Finding the Fourth Proportional to 3,186.46, 4,782.57 and 1,338.94

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Solution

The fourth proportional to 3,186.46, 4,782.57 and 1,338.94 is: 2,009.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.46 : 4,782.57 = 1,338.94 : x
  2. Step 2: Convert to fraction form
    3,186.46/4,782.57 = 1,338.94/x
  3. Step 3: Cross multiply
    3,186.46x = 4,782.57 × 1,338.94
  4. Step 4: Simplify right side
    3,186.46x = 6,403,574.28
  5. Step 5: Solve for x
    x = 6,403,574.28/3,186.46
  6. Step 6: Final answer
    x = 2,009.62

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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.