Home / 4,286.64-6,420.18-2,208.42

Finding the Fourth Proportional to 4,286.64, 6,420.18 and 2,208.42

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Solution

The fourth proportional to 4,286.64, 6,420.18 and 2,208.42 is: 3,307.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,286.64 : 6,420.18 = 2,208.42 : x
  2. Step 2: Convert to fraction form
    4,286.64/6,420.18 = 2,208.42/x
  3. Step 3: Cross multiply
    4,286.64x = 6,420.18 × 2,208.42
  4. Step 4: Simplify right side
    4,286.64x = 14,178,453.92
  5. Step 5: Solve for x
    x = 14,178,453.92/4,286.64
  6. Step 6: Final answer
    x = 3,307.59

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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.