Home / 1,999.16-2,758.59-1,102.88

Finding the Fourth Proportional to 1,999.16, 2,758.59 and 1,102.88

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Solution

The fourth proportional to 1,999.16, 2,758.59 and 1,102.88 is: 1,521.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,999.16 : 2,758.59 = 1,102.88 : x
  2. Step 2: Convert to fraction form
    1,999.16/2,758.59 = 1,102.88/x
  3. Step 3: Cross multiply
    1,999.16x = 2,758.59 × 1,102.88
  4. Step 4: Simplify right side
    1,999.16x = 3,042,393.74
  5. Step 5: Solve for x
    x = 3,042,393.74/1,999.16
  6. Step 6: Final answer
    x = 1,521.84

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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.