Home / 7,172.44-9,897.96-4,028.64

Finding the Fourth Proportional to 7,172.44, 9,897.96 and 4,028.64

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Solution

The fourth proportional to 7,172.44, 9,897.96 and 4,028.64 is: 5,559.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172.44 : 9,897.96 = 4,028.64 : x
  2. Step 2: Convert to fraction form
    7,172.44/9,897.96 = 4,028.64/x
  3. Step 3: Cross multiply
    7,172.44x = 9,897.96 × 4,028.64
  4. Step 4: Simplify right side
    7,172.44x = 39,875,317.57
  5. Step 5: Solve for x
    x = 39,875,317.57/7,172.44
  6. Step 6: Final answer
    x = 5,559.52

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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.