Home / 3,281.45-4,528.47-1,789.49

Finding the Fourth Proportional to 3,281.45, 4,528.47 and 1,789.49

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Solution

The fourth proportional to 3,281.45, 4,528.47 and 1,789.49 is: 2,469.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,281.45 : 4,528.47 = 1,789.49 : x
  2. Step 2: Convert to fraction form
    3,281.45/4,528.47 = 1,789.49/x
  3. Step 3: Cross multiply
    3,281.45x = 4,528.47 × 1,789.49
  4. Step 4: Simplify right side
    3,281.45x = 8,103,669.81
  5. Step 5: Solve for x
    x = 8,103,669.81/3,281.45
  6. Step 6: Final answer
    x = 2,469.54

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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.