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Finding the Fourth Proportional to 3,290.74, 4,936.93 and 950.69

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Solution

The fourth proportional to 3,290.74, 4,936.93 and 950.69 is: 1,426.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,290.74 : 4,936.93 = 950.69 : x
  2. Step 2: Convert to fraction form
    3,290.74/4,936.93 = 950.69/x
  3. Step 3: Cross multiply
    3,290.74x = 4,936.93 × 950.69
  4. Step 4: Simplify right side
    3,290.74x = 4,693,489.98
  5. Step 5: Solve for x
    x = 4,693,489.98/3,290.74
  6. Step 6: Final answer
    x = 1,426.27

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1.5x scale

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.