Home / 3,281.30-4,528.08-1,789.20

Finding the Fourth Proportional to 3,281.30, 4,528.08 and 1,789.20

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Solution

The fourth proportional to 3,281.30, 4,528.08 and 1,789.20 is: 2,469.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,281.30 : 4,528.08 = 1,789.20 : x
  2. Step 2: Convert to fraction form
    3,281.30/4,528.08 = 1,789.20/x
  3. Step 3: Cross multiply
    3,281.30x = 4,528.08 × 1,789.20
  4. Step 4: Simplify right side
    3,281.30x = 8,101,640.74
  5. Step 5: Solve for x
    x = 8,101,640.74/3,281.30
  6. Step 6: Final answer
    x = 2,469.03

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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.