Home / 1,379.97-2,058.66-1,342.31

Finding the Fourth Proportional to 1,379.97, 2,058.66 and 1,342.31

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Solution

The fourth proportional to 1,379.97, 2,058.66 and 1,342.31 is: 2,002.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379.97 : 2,058.66 = 1,342.31 : x
  2. Step 2: Convert to fraction form
    1,379.97/2,058.66 = 1,342.31/x
  3. Step 3: Cross multiply
    1,379.97x = 2,058.66 × 1,342.31
  4. Step 4: Simplify right side
    1,379.97x = 2,763,349.61
  5. Step 5: Solve for x
    x = 2,763,349.61/1,379.97
  6. Step 6: Final answer
    x = 2,002.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.