Home / 3,378.29-4,662.64-2,015.64

Finding the Fourth Proportional to 3,378.29, 4,662.64 and 2,015.64

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Solution

The fourth proportional to 3,378.29, 4,662.64 and 2,015.64 is: 2,781.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.29 : 4,662.64 = 2,015.64 : x
  2. Step 2: Convert to fraction form
    3,378.29/4,662.64 = 2,015.64/x
  3. Step 3: Cross multiply
    3,378.29x = 4,662.64 × 2,015.64
  4. Step 4: Simplify right side
    3,378.29x = 9,398,203.69
  5. Step 5: Solve for x
    x = 9,398,203.69/3,378.29
  6. Step 6: Final answer
    x = 2,781.95

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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.