Home / 1,998.19-2,757.51-1,114.02

Finding the Fourth Proportional to 1,998.19, 2,757.51 and 1,114.02

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Solution

The fourth proportional to 1,998.19, 2,757.51 and 1,114.02 is: 1,537.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998.19 : 2,757.51 = 1,114.02 : x
  2. Step 2: Convert to fraction form
    1,998.19/2,757.51 = 1,114.02/x
  3. Step 3: Cross multiply
    1,998.19x = 2,757.51 × 1,114.02
  4. Step 4: Simplify right side
    1,998.19x = 3,071,921.29
  5. Step 5: Solve for x
    x = 3,071,921.29/1,998.19
  6. Step 6: Final answer
    x = 1,537.35

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Half scale
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Double scale
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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.