Home / 3,218.58-4,828.95-1,269.72

Finding the Fourth Proportional to 3,218.58, 4,828.95 and 1,269.72

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Solution

The fourth proportional to 3,218.58, 4,828.95 and 1,269.72 is: 1,905.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.58 : 4,828.95 = 1,269.72 : x
  2. Step 2: Convert to fraction form
    3,218.58/4,828.95 = 1,269.72/x
  3. Step 3: Cross multiply
    3,218.58x = 4,828.95 × 1,269.72
  4. Step 4: Simplify right side
    3,218.58x = 6,131,414.39
  5. Step 5: Solve for x
    x = 6,131,414.39/3,218.58
  6. Step 6: Final answer
    x = 1,905.01

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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.