Home / 4,287.94-6,432.99-1,209.94

Finding the Fourth Proportional to 4,287.94, 6,432.99 and 1,209.94

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Solution

The fourth proportional to 4,287.94, 6,432.99 and 1,209.94 is: 1,815.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,287.94 : 6,432.99 = 1,209.94 : x
  2. Step 2: Convert to fraction form
    4,287.94/6,432.99 = 1,209.94/x
  3. Step 3: Cross multiply
    4,287.94x = 6,432.99 × 1,209.94
  4. Step 4: Simplify right side
    4,287.94x = 7,783,511.30
  5. Step 5: Solve for x
    x = 7,783,511.30/4,287.94
  6. Step 6: Final answer
    x = 1,815.21

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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.