Home / 2,786.02-4,175.99-1,690.09

Finding the Fourth Proportional to 2,786.02, 4,175.99 and 1,690.09

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Solution

The fourth proportional to 2,786.02, 4,175.99 and 1,690.09 is: 2,533.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.02 : 4,175.99 = 1,690.09 : x
  2. Step 2: Convert to fraction form
    2,786.02/4,175.99 = 1,690.09/x
  3. Step 3: Cross multiply
    2,786.02x = 4,175.99 × 1,690.09
  4. Step 4: Simplify right side
    2,786.02x = 7,057,798.94
  5. Step 5: Solve for x
    x = 7,057,798.94/2,786.02
  6. Step 6: Final answer
    x = 2,533.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.