Home / 1,780.44-2,456.14-1,513.80

Finding the Fourth Proportional to 1,780.44, 2,456.14 and 1,513.80

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Solution

The fourth proportional to 1,780.44, 2,456.14 and 1,513.80 is: 2,088.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780.44 : 2,456.14 = 1,513.80 : x
  2. Step 2: Convert to fraction form
    1,780.44/2,456.14 = 1,513.80/x
  3. Step 3: Cross multiply
    1,780.44x = 2,456.14 × 1,513.80
  4. Step 4: Simplify right side
    1,780.44x = 3,718,104.73
  5. Step 5: Solve for x
    x = 3,718,104.73/1,780.44
  6. Step 6: Final answer
    x = 2,088.31

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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.