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Finding the Fourth Proportional to 3,618.64, 4,993.92 and 2,025.25

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Solution

The fourth proportional to 3,618.64, 4,993.92 and 2,025.25 is: 2,794.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.64 : 4,993.92 = 2,025.25 : x
  2. Step 2: Convert to fraction form
    3,618.64/4,993.92 = 2,025.25/x
  3. Step 3: Cross multiply
    3,618.64x = 4,993.92 × 2,025.25
  4. Step 4: Simplify right side
    3,618.64x = 10,113,911.51
  5. Step 5: Solve for x
    x = 10,113,911.51/3,618.64
  6. Step 6: Final answer
    x = 2,794.95

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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.