Home / 7,854.03-11,779.61-3,172.82

Finding the Fourth Proportional to 7,854.03, 11,779.61 and 3,172.82

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Solution

The fourth proportional to 7,854.03, 11,779.61 and 3,172.82 is: 4,758.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,854.03 : 11,779.61 = 3,172.82 : x
  2. Step 2: Convert to fraction form
    7,854.03/11,779.61 = 3,172.82/x
  3. Step 3: Cross multiply
    7,854.03x = 11,779.61 × 3,172.82
  4. Step 4: Simplify right side
    7,854.03x = 37,374,507.44
  5. Step 5: Solve for x
    x = 37,374,507.44/7,854.03
  6. Step 6: Final answer
    x = 4,758.64

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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.