Home / 3,284.13-4,923.58-1,639.78

Finding the Fourth Proportional to 3,284.13, 4,923.58 and 1,639.78

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Solution

The fourth proportional to 3,284.13, 4,923.58 and 1,639.78 is: 2,458.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,284.13 : 4,923.58 = 1,639.78 : x
  2. Step 2: Convert to fraction form
    3,284.13/4,923.58 = 1,639.78/x
  3. Step 3: Cross multiply
    3,284.13x = 4,923.58 × 1,639.78
  4. Step 4: Simplify right side
    3,284.13x = 8,073,579.81
  5. Step 5: Solve for x
    x = 8,073,579.81/3,284.13
  6. Step 6: Final answer
    x = 2,458.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.