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Finding the Fourth Proportional to 2,866.88, 4,293.03 and 1,890.02

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Solution

The fourth proportional to 2,866.88, 4,293.03 and 1,890.02 is: 2,830.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,866.88 : 4,293.03 = 1,890.02 : x
  2. Step 2: Convert to fraction form
    2,866.88/4,293.03 = 1,890.02/x
  3. Step 3: Cross multiply
    2,866.88x = 4,293.03 × 1,890.02
  4. Step 4: Simplify right side
    2,866.88x = 8,113,912.56
  5. Step 5: Solve for x
    x = 8,113,912.56/2,866.88
  6. Step 6: Final answer
    x = 2,830.22

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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.