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Finding the Fourth Proportional to 2,058.66, 2,839.96 and 1,979.09

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Solution

The fourth proportional to 2,058.66, 2,839.96 and 1,979.09 is: 2,730.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,058.66 : 2,839.96 = 1,979.09 : x
  2. Step 2: Convert to fraction form
    2,058.66/2,839.96 = 1,979.09/x
  3. Step 3: Cross multiply
    2,058.66x = 2,839.96 × 1,979.09
  4. Step 4: Simplify right side
    2,058.66x = 5,620,536.44
  5. Step 5: Solve for x
    x = 5,620,536.44/2,058.66
  6. Step 6: Final answer
    x = 2,730.19

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1.5x scale

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.