Home / 2,856.22-4,283.41-907.97

Finding the Fourth Proportional to 2,856.22, 4,283.41 and 907.97

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Solution

The fourth proportional to 2,856.22, 4,283.41 and 907.97 is: 1,361.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,856.22 : 4,283.41 = 907.97 : x
  2. Step 2: Convert to fraction form
    2,856.22/4,283.41 = 907.97/x
  3. Step 3: Cross multiply
    2,856.22x = 4,283.41 × 907.97
  4. Step 4: Simplify right side
    2,856.22x = 3,889,184.09
  5. Step 5: Solve for x
    x = 3,889,184.09/2,856.22
  6. Step 6: Final answer
    x = 1,361.66

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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.