Home / 5,855.77-8,779.01-3,387.80

Finding the Fourth Proportional to 5,855.77, 8,779.01 and 3,387.80

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Solution

The fourth proportional to 5,855.77, 8,779.01 and 3,387.80 is: 5,079.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,855.77 : 8,779.01 = 3,387.80 : x
  2. Step 2: Convert to fraction form
    5,855.77/8,779.01 = 3,387.80/x
  3. Step 3: Cross multiply
    5,855.77x = 8,779.01 × 3,387.80
  4. Step 4: Simplify right side
    5,855.77x = 29,741,535.09
  5. Step 5: Solve for x
    x = 29,741,535.09/5,855.77
  6. Step 6: Final answer
    x = 5,079.02

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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.