Home / 3,281.85-4,528.98-1,789.76

Finding the Fourth Proportional to 3,281.85, 4,528.98 and 1,789.76

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Solution

The fourth proportional to 3,281.85, 4,528.98 and 1,789.76 is: 2,469.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,281.85 : 4,528.98 = 1,789.76 : x
  2. Step 2: Convert to fraction form
    3,281.85/4,528.98 = 1,789.76/x
  3. Step 3: Cross multiply
    3,281.85x = 4,528.98 × 1,789.76
  4. Step 4: Simplify right side
    3,281.85x = 8,105,798.57
  5. Step 5: Solve for x
    x = 8,105,798.57/3,281.85
  6. Step 6: Final answer
    x = 2,469.89

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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.