Home / 2,679.63-3,698.09-1,631.89

Finding the Fourth Proportional to 2,679.63, 3,698.09 and 1,631.89

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Solution

The fourth proportional to 2,679.63, 3,698.09 and 1,631.89 is: 2,252.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679.63 : 3,698.09 = 1,631.89 : x
  2. Step 2: Convert to fraction form
    2,679.63/3,698.09 = 1,631.89/x
  3. Step 3: Cross multiply
    2,679.63x = 3,698.09 × 1,631.89
  4. Step 4: Simplify right side
    2,679.63x = 6,034,876.09
  5. Step 5: Solve for x
    x = 6,034,876.09/2,679.63
  6. Step 6: Final answer
    x = 2,252.13

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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.