Home / 4,209.43-6,315.08-1,287.97

Finding the Fourth Proportional to 4,209.43, 6,315.08 and 1,287.97

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Solution

The fourth proportional to 4,209.43, 6,315.08 and 1,287.97 is: 1,932.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,209.43 : 6,315.08 = 1,287.97 : x
  2. Step 2: Convert to fraction form
    4,209.43/6,315.08 = 1,287.97/x
  3. Step 3: Cross multiply
    4,209.43x = 6,315.08 × 1,287.97
  4. Step 4: Simplify right side
    4,209.43x = 8,133,633.59
  5. Step 5: Solve for x
    x = 8,133,633.59/4,209.43
  6. Step 6: Final answer
    x = 1,932.24

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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.