Home / 3,289.07-4,939.88-1,905.18

Finding the Fourth Proportional to 3,289.07, 4,939.88 and 1,905.18

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Solution

The fourth proportional to 3,289.07, 4,939.88 and 1,905.18 is: 2,861.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,289.07 : 4,939.88 = 1,905.18 : x
  2. Step 2: Convert to fraction form
    3,289.07/4,939.88 = 1,905.18/x
  3. Step 3: Cross multiply
    3,289.07x = 4,939.88 × 1,905.18
  4. Step 4: Simplify right side
    3,289.07x = 9,411,351.05
  5. Step 5: Solve for x
    x = 9,411,351.05/3,289.07
  6. Step 6: Final answer
    x = 2,861.41

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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.