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Finding the Fourth Proportional to 4,900, 7,350 and 1,252

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Solution

The fourth proportional to 4,900, 7,350 and 1,252 is: 1,878

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,900 : 7,350 = 1,252 : x
  2. Step 2: Convert to fraction form
    4,900/7,350 = 1,252/x
  3. Step 3: Cross multiply
    4,900x = 7,350 × 1,252
  4. Step 4: Simplify right side
    4,900x = 9,202,200
  5. Step 5: Solve for x
    x = 9,202,200/4,900
  6. Step 6: Final answer
    x = 1,878

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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.