Home / 1,376.97-2,054.19-1,339.31

Finding the Fourth Proportional to 1,376.97, 2,054.19 and 1,339.31

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Solution

The fourth proportional to 1,376.97, 2,054.19 and 1,339.31 is: 1,998.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376.97 : 2,054.19 = 1,339.31 : x
  2. Step 2: Convert to fraction form
    1,376.97/2,054.19 = 1,339.31/x
  3. Step 3: Cross multiply
    1,376.97x = 2,054.19 × 1,339.31
  4. Step 4: Simplify right side
    1,376.97x = 2,751,190.29
  5. Step 5: Solve for x
    x = 2,751,190.29/1,376.97
  6. Step 6: Final answer
    x = 1,998.00

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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.