Home / 2,057.66-3,079.77-1,119.20

Finding the Fourth Proportional to 2,057.66, 3,079.77 and 1,119.20

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Solution

The fourth proportional to 2,057.66, 3,079.77 and 1,119.20 is: 1,675.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,057.66 : 3,079.77 = 1,119.20 : x
  2. Step 2: Convert to fraction form
    2,057.66/3,079.77 = 1,119.20/x
  3. Step 3: Cross multiply
    2,057.66x = 3,079.77 × 1,119.20
  4. Step 4: Simplify right side
    2,057.66x = 3,446,878.58
  5. Step 5: Solve for x
    x = 3,446,878.58/2,057.66
  6. Step 6: Final answer
    x = 1,675.14

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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.