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Finding the Fourth Proportional to 2,900, 4,350.72 and 848

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Solution

The fourth proportional to 2,900, 4,350.72 and 848 is: 1,272.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,900 : 4,350.72 = 848 : x
  2. Step 2: Convert to fraction form
    2,900/4,350.72 = 848/x
  3. Step 3: Cross multiply
    2,900x = 4,350.72 × 848
  4. Step 4: Simplify right side
    2,900x = 3,689,410.56
  5. Step 5: Solve for x
    x = 3,689,410.56/2,900
  6. Step 6: Final answer
    x = 1,272.21

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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.