Home / 1,786.94-2,467.19-1,115.01

Finding the Fourth Proportional to 1,786.94, 2,467.19 and 1,115.01

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Solution

The fourth proportional to 1,786.94, 2,467.19 and 1,115.01 is: 1,539.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786.94 : 2,467.19 = 1,115.01 : x
  2. Step 2: Convert to fraction form
    1,786.94/2,467.19 = 1,115.01/x
  3. Step 3: Cross multiply
    1,786.94x = 2,467.19 × 1,115.01
  4. Step 4: Simplify right side
    1,786.94x = 2,750,935.95
  5. Step 5: Solve for x
    x = 2,750,935.95/1,786.94
  6. Step 6: Final answer
    x = 1,539.47

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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.