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Finding the Fourth Proportional to 3,959.74, 5,926.73 and 2,919.33

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Solution

The fourth proportional to 3,959.74, 5,926.73 and 2,919.33 is: 4,369.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,959.74 : 5,926.73 = 2,919.33 : x
  2. Step 2: Convert to fraction form
    3,959.74/5,926.73 = 2,919.33/x
  3. Step 3: Cross multiply
    3,959.74x = 5,926.73 × 2,919.33
  4. Step 4: Simplify right side
    3,959.74x = 17,302,080.69
  5. Step 5: Solve for x
    x = 17,302,080.69/3,959.74
  6. Step 6: Final answer
    x = 4,369.50

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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.