Home / 1,941.33-2,678.99-1,057.11

Finding the Fourth Proportional to 1,941.33, 2,678.99 and 1,057.11

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Solution

The fourth proportional to 1,941.33, 2,678.99 and 1,057.11 is: 1,458.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.33 : 2,678.99 = 1,057.11 : x
  2. Step 2: Convert to fraction form
    1,941.33/2,678.99 = 1,057.11/x
  3. Step 3: Cross multiply
    1,941.33x = 2,678.99 × 1,057.11
  4. Step 4: Simplify right side
    1,941.33x = 2,831,987.12
  5. Step 5: Solve for x
    x = 2,831,987.12/1,941.33
  6. Step 6: Final answer
    x = 1,458.79

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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.