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Finding the Fourth Proportional to 4,790, 6,606.48 and 3,020.96

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Solution

The fourth proportional to 4,790, 6,606.48 and 3,020.96 is: 4,166.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,790 : 6,606.48 = 3,020.96 : x
  2. Step 2: Convert to fraction form
    4,790/6,606.48 = 3,020.96/x
  3. Step 3: Cross multiply
    4,790x = 6,606.48 × 3,020.96
  4. Step 4: Simplify right side
    4,790x = 19,957,911.82
  5. Step 5: Solve for x
    x = 19,957,911.82/4,790
  6. Step 6: Final answer
    x = 4,166.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.