Home / 2,957.65-4,081.80-1,631.48

Finding the Fourth Proportional to 2,957.65, 4,081.80 and 1,631.48

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Solution

The fourth proportional to 2,957.65, 4,081.80 and 1,631.48 is: 2,251.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,957.65 : 4,081.80 = 1,631.48 : x
  2. Step 2: Convert to fraction form
    2,957.65/4,081.80 = 1,631.48/x
  3. Step 3: Cross multiply
    2,957.65x = 4,081.80 × 1,631.48
  4. Step 4: Simplify right side
    2,957.65x = 6,659,375.06
  5. Step 5: Solve for x
    x = 6,659,375.06/2,957.65
  6. Step 6: Final answer
    x = 2,251.58

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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.