Home / 3,957.45-5,461.18-2,279.53

Finding the Fourth Proportional to 3,957.45, 5,461.18 and 2,279.53

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Solution

The fourth proportional to 3,957.45, 5,461.18 and 2,279.53 is: 3,145.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957.45 : 5,461.18 = 2,279.53 : x
  2. Step 2: Convert to fraction form
    3,957.45/5,461.18 = 2,279.53/x
  3. Step 3: Cross multiply
    3,957.45x = 5,461.18 × 2,279.53
  4. Step 4: Simplify right side
    3,957.45x = 12,448,923.65
  5. Step 5: Solve for x
    x = 12,448,923.65/3,957.45
  6. Step 6: Final answer
    x = 3,145.69

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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.