Home / 7,172.01-9,897.31-4,028.13

Finding the Fourth Proportional to 7,172.01, 9,897.31 and 4,028.13

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Solution

The fourth proportional to 7,172.01, 9,897.31 and 4,028.13 is: 5,558.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172.01 : 9,897.31 = 4,028.13 : x
  2. Step 2: Convert to fraction form
    7,172.01/9,897.31 = 4,028.13/x
  3. Step 3: Cross multiply
    7,172.01x = 9,897.31 × 4,028.13
  4. Step 4: Simplify right side
    7,172.01x = 39,867,651.33
  5. Step 5: Solve for x
    x = 39,867,651.33/7,172.01
  6. Step 6: Final answer
    x = 5,558.78

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1.5x scale

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.