Home / 1,996.08-2,754.48-1,111.80

Finding the Fourth Proportional to 1,996.08, 2,754.48 and 1,111.80

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Solution

The fourth proportional to 1,996.08, 2,754.48 and 1,111.80 is: 1,534.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996.08 : 2,754.48 = 1,111.80 : x
  2. Step 2: Convert to fraction form
    1,996.08/2,754.48 = 1,111.80/x
  3. Step 3: Cross multiply
    1,996.08x = 2,754.48 × 1,111.80
  4. Step 4: Simplify right side
    1,996.08x = 3,062,430.86
  5. Step 5: Solve for x
    x = 3,062,430.86/1,996.08
  6. Step 6: Final answer
    x = 1,534.22

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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.