Home / 3,957.14-5,461.26-2,278.61

Finding the Fourth Proportional to 3,957.14, 5,461.26 and 2,278.61

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Solution

The fourth proportional to 3,957.14, 5,461.26 and 2,278.61 is: 3,144.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957.14 : 5,461.26 = 2,278.61 : x
  2. Step 2: Convert to fraction form
    3,957.14/5,461.26 = 2,278.61/x
  3. Step 3: Cross multiply
    3,957.14x = 5,461.26 × 2,278.61
  4. Step 4: Simplify right side
    3,957.14x = 12,444,081.65
  5. Step 5: Solve for x
    x = 12,444,081.65/3,957.14
  6. Step 6: Final answer
    x = 3,144.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.