Home / 4,222.64-6,336.80-1,625.78

Finding the Fourth Proportional to 4,222.64, 6,336.80 and 1,625.78

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Solution

The fourth proportional to 4,222.64, 6,336.80 and 1,625.78 is: 2,439.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,222.64 : 6,336.80 = 1,625.78 : x
  2. Step 2: Convert to fraction form
    4,222.64/6,336.80 = 1,625.78/x
  3. Step 3: Cross multiply
    4,222.64x = 6,336.80 × 1,625.78
  4. Step 4: Simplify right side
    4,222.64x = 10,302,242.70
  5. Step 5: Solve for x
    x = 10,302,242.70/4,222.64
  6. Step 6: Final answer
    x = 2,439.76

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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.