Home / 3,859.96-5,789.58-1,913.44

Finding the Fourth Proportional to 3,859.96, 5,789.58 and 1,913.44

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Solution

The fourth proportional to 3,859.96, 5,789.58 and 1,913.44 is: 2,869.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.96 : 5,789.58 = 1,913.44 : x
  2. Step 2: Convert to fraction form
    3,859.96/5,789.58 = 1,913.44/x
  3. Step 3: Cross multiply
    3,859.96x = 5,789.58 × 1,913.44
  4. Step 4: Simplify right side
    3,859.96x = 11,078,013.96
  5. Step 5: Solve for x
    x = 11,078,013.96/3,859.96
  6. Step 6: Final answer
    x = 2,869.98

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1.5x scale

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.