Home / 4,268.49-6,404.78-1,930.15

Finding the Fourth Proportional to 4,268.49, 6,404.78 and 1,930.15

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Solution

The fourth proportional to 4,268.49, 6,404.78 and 1,930.15 is: 2,896.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,268.49 : 6,404.78 = 1,930.15 : x
  2. Step 2: Convert to fraction form
    4,268.49/6,404.78 = 1,930.15/x
  3. Step 3: Cross multiply
    4,268.49x = 6,404.78 × 1,930.15
  4. Step 4: Simplify right side
    4,268.49x = 12,362,186.12
  5. Step 5: Solve for x
    x = 12,362,186.12/4,268.49
  6. Step 6: Final answer
    x = 2,896.15

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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.