Home / 1,946.06-2,919.78-1,214.79

Finding the Fourth Proportional to 1,946.06, 2,919.78 and 1,214.79

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Solution

The fourth proportional to 1,946.06, 2,919.78 and 1,214.79 is: 1,822.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.06 : 2,919.78 = 1,214.79 : x
  2. Step 2: Convert to fraction form
    1,946.06/2,919.78 = 1,214.79/x
  3. Step 3: Cross multiply
    1,946.06x = 2,919.78 × 1,214.79
  4. Step 4: Simplify right side
    1,946.06x = 3,546,919.55
  5. Step 5: Solve for x
    x = 3,546,919.55/1,946.06
  6. Step 6: Final answer
    x = 1,822.62

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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.