Home / 5,855.98-8,779.35-2,156.19

Finding the Fourth Proportional to 5,855.98, 8,779.35 and 2,156.19

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Solution

The fourth proportional to 5,855.98, 8,779.35 and 2,156.19 is: 3,232.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,855.98 : 8,779.35 = 2,156.19 : x
  2. Step 2: Convert to fraction form
    5,855.98/8,779.35 = 2,156.19/x
  3. Step 3: Cross multiply
    5,855.98x = 8,779.35 × 2,156.19
  4. Step 4: Simplify right side
    5,855.98x = 18,929,921.84
  5. Step 5: Solve for x
    x = 18,929,921.84/5,855.98
  6. Step 6: Final answer
    x = 3,232.58

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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.