Home / 3,853.38-5,779.84-1,079.98

Finding the Fourth Proportional to 3,853.38, 5,779.84 and 1,079.98

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Solution

The fourth proportional to 3,853.38, 5,779.84 and 1,079.98 is: 1,619.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,853.38 : 5,779.84 = 1,079.98 : x
  2. Step 2: Convert to fraction form
    3,853.38/5,779.84 = 1,079.98/x
  3. Step 3: Cross multiply
    3,853.38x = 5,779.84 × 1,079.98
  4. Step 4: Simplify right side
    3,853.38x = 6,242,111.60
  5. Step 5: Solve for x
    x = 6,242,111.60/3,853.38
  6. Step 6: Final answer
    x = 1,619.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.