Home / 3,306.78-4,563.36-1,909.62

Finding the Fourth Proportional to 3,306.78, 4,563.36 and 1,909.62

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Solution

The fourth proportional to 3,306.78, 4,563.36 and 1,909.62 is: 2,635.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,306.78 : 4,563.36 = 1,909.62 : x
  2. Step 2: Convert to fraction form
    3,306.78/4,563.36 = 1,909.62/x
  3. Step 3: Cross multiply
    3,306.78x = 4,563.36 × 1,909.62
  4. Step 4: Simplify right side
    3,306.78x = 8,714,283.52
  5. Step 5: Solve for x
    x = 8,714,283.52/3,306.78
  6. Step 6: Final answer
    x = 2,635.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.