Home / 3,884.25-5,827.30-1,287.19

Finding the Fourth Proportional to 3,884.25, 5,827.30 and 1,287.19

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Solution

The fourth proportional to 3,884.25, 5,827.30 and 1,287.19 is: 1,931.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,884.25 : 5,827.30 = 1,287.19 : x
  2. Step 2: Convert to fraction form
    3,884.25/5,827.30 = 1,287.19/x
  3. Step 3: Cross multiply
    3,884.25x = 5,827.30 × 1,287.19
  4. Step 4: Simplify right side
    3,884.25x = 7,500,824.50
  5. Step 5: Solve for x
    x = 7,500,824.50/3,884.25
  6. Step 6: Final answer
    x = 1,931.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.