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Finding the Fourth Proportional to 3,618.79, 4,994.03 and 2,025.43

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Solution

The fourth proportional to 3,618.79, 4,994.03 and 2,025.43 is: 2,795.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.79 : 4,994.03 = 2,025.43 : x
  2. Step 2: Convert to fraction form
    3,618.79/4,994.03 = 2,025.43/x
  3. Step 3: Cross multiply
    3,618.79x = 4,994.03 × 2,025.43
  4. Step 4: Simplify right side
    3,618.79x = 10,115,041.81
  5. Step 5: Solve for x
    x = 10,115,041.81/3,618.79
  6. Step 6: Final answer
    x = 2,795.14

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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.