Home / 2,865.44-4,292.67-1,939.40

Finding the Fourth Proportional to 2,865.44, 4,292.67 and 1,939.40

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Solution

The fourth proportional to 2,865.44, 4,292.67 and 1,939.40 is: 2,905.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,865.44 : 4,292.67 = 1,939.40 : x
  2. Step 2: Convert to fraction form
    2,865.44/4,292.67 = 1,939.40/x
  3. Step 3: Cross multiply
    2,865.44x = 4,292.67 × 1,939.40
  4. Step 4: Simplify right side
    2,865.44x = 8,325,222.20
  5. Step 5: Solve for x
    x = 8,325,222.20/2,865.44
  6. Step 6: Final answer
    x = 2,905.39

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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.