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Finding the Fourth Proportional to 2,872.76, 4,310.23 and 1,485.23

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Solution

The fourth proportional to 2,872.76, 4,310.23 and 1,485.23 is: 2,228.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872.76 : 4,310.23 = 1,485.23 : x
  2. Step 2: Convert to fraction form
    2,872.76/4,310.23 = 1,485.23/x
  3. Step 3: Cross multiply
    2,872.76x = 4,310.23 × 1,485.23
  4. Step 4: Simplify right side
    2,872.76x = 6,401,682.90
  5. Step 5: Solve for x
    x = 6,401,682.90/2,872.76
  6. Step 6: Final answer
    x = 2,228.41

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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.