Home / 2,564.21-3,847.55-1,265.39

Finding the Fourth Proportional to 2,564.21, 3,847.55 and 1,265.39

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Solution

The fourth proportional to 2,564.21, 3,847.55 and 1,265.39 is: 1,898.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,564.21 : 3,847.55 = 1,265.39 : x
  2. Step 2: Convert to fraction form
    2,564.21/3,847.55 = 1,265.39/x
  3. Step 3: Cross multiply
    2,564.21x = 3,847.55 × 1,265.39
  4. Step 4: Simplify right side
    2,564.21x = 4,868,644.97
  5. Step 5: Solve for x
    x = 4,868,644.97/2,564.21
  6. Step 6: Final answer
    x = 1,898.69

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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.