Home / 5,199.19-7,172.73-3,779.75

Finding the Fourth Proportional to 5,199.19, 7,172.73 and 3,779.75

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Solution

The fourth proportional to 5,199.19, 7,172.73 and 3,779.75 is: 5,214.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,199.19 : 7,172.73 = 3,779.75 : x
  2. Step 2: Convert to fraction form
    5,199.19/7,172.73 = 3,779.75/x
  3. Step 3: Cross multiply
    5,199.19x = 7,172.73 × 3,779.75
  4. Step 4: Simplify right side
    5,199.19x = 27,111,144.15
  5. Step 5: Solve for x
    x = 27,111,144.15/5,199.19
  6. Step 6: Final answer
    x = 5,214.50

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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.