Home / 3,286.59-4,931.46-1,643.37

Finding the Fourth Proportional to 3,286.59, 4,931.46 and 1,643.37

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Solution

The fourth proportional to 3,286.59, 4,931.46 and 1,643.37 is: 2,465.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,286.59 : 4,931.46 = 1,643.37 : x
  2. Step 2: Convert to fraction form
    3,286.59/4,931.46 = 1,643.37/x
  3. Step 3: Cross multiply
    3,286.59x = 4,931.46 × 1,643.37
  4. Step 4: Simplify right side
    3,286.59x = 8,104,213.42
  5. Step 5: Solve for x
    x = 8,104,213.42/3,286.59
  6. Step 6: Final answer
    x = 2,465.84

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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.