Home / 1,998.44-2,757.76-1,114.28

Finding the Fourth Proportional to 1,998.44, 2,757.76 and 1,114.28

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Solution

The fourth proportional to 1,998.44, 2,757.76 and 1,114.28 is: 1,537.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998.44 : 2,757.76 = 1,114.28 : x
  2. Step 2: Convert to fraction form
    1,998.44/2,757.76 = 1,114.28/x
  3. Step 3: Cross multiply
    1,998.44x = 2,757.76 × 1,114.28
  4. Step 4: Simplify right side
    1,998.44x = 3,072,916.81
  5. Step 5: Solve for x
    x = 3,072,916.81/1,998.44
  6. Step 6: Final answer
    x = 1,537.66

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1.5x scale

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.