Home / 2,382.51-3,287.34-1,387.29

Finding the Fourth Proportional to 2,382.51, 3,287.34 and 1,387.29

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Solution

The fourth proportional to 2,382.51, 3,287.34 and 1,387.29 is: 1,914.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,382.51 : 3,287.34 = 1,387.29 : x
  2. Step 2: Convert to fraction form
    2,382.51/3,287.34 = 1,387.29/x
  3. Step 3: Cross multiply
    2,382.51x = 3,287.34 × 1,387.29
  4. Step 4: Simplify right side
    2,382.51x = 4,560,493.91
  5. Step 5: Solve for x
    x = 4,560,493.91/2,382.51
  6. Step 6: Final answer
    x = 1,914.16

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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.