Home / 3,281.27-4,528.12-1,789.15

Finding the Fourth Proportional to 3,281.27, 4,528.12 and 1,789.15

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Solution

The fourth proportional to 3,281.27, 4,528.12 and 1,789.15 is: 2,469.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,281.27 : 4,528.12 = 1,789.15 : x
  2. Step 2: Convert to fraction form
    3,281.27/4,528.12 = 1,789.15/x
  3. Step 3: Cross multiply
    3,281.27x = 4,528.12 × 1,789.15
  4. Step 4: Simplify right side
    3,281.27x = 8,101,487.09
  5. Step 5: Solve for x
    x = 8,101,487.09/3,281.27
  6. Step 6: Final answer
    x = 2,469.01

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1.5x scale

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.