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Finding the Fourth Proportional to 7,385.79, 10,192.07 and 4,028.54

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Solution

The fourth proportional to 7,385.79, 10,192.07 and 4,028.54 is: 5,559.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,385.79 : 10,192.07 = 4,028.54 : x
  2. Step 2: Convert to fraction form
    7,385.79/10,192.07 = 4,028.54/x
  3. Step 3: Cross multiply
    7,385.79x = 10,192.07 × 4,028.54
  4. Step 4: Simplify right side
    7,385.79x = 41,059,090.57
  5. Step 5: Solve for x
    x = 41,059,090.57/7,385.79
  6. Step 6: Final answer
    x = 5,559.20

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.