Home / 3,238.10-4,859.15-1,290.10

Finding the Fourth Proportional to 3,238.10, 4,859.15 and 1,290.10

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Solution

The fourth proportional to 3,238.10, 4,859.15 and 1,290.10 is: 1,935.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,238.10 : 4,859.15 = 1,290.10 : x
  2. Step 2: Convert to fraction form
    3,238.10/4,859.15 = 1,290.10/x
  3. Step 3: Cross multiply
    3,238.10x = 4,859.15 × 1,290.10
  4. Step 4: Simplify right side
    3,238.10x = 6,268,789.42
  5. Step 5: Solve for x
    x = 6,268,789.42/3,238.10
  6. Step 6: Final answer
    x = 1,935.95

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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.