Home / 1,970.27-2,949.64-1,195.55

Finding the Fourth Proportional to 1,970.27, 2,949.64 and 1,195.55

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Solution

The fourth proportional to 1,970.27, 2,949.64 and 1,195.55 is: 1,789.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,970.27 : 2,949.64 = 1,195.55 : x
  2. Step 2: Convert to fraction form
    1,970.27/2,949.64 = 1,195.55/x
  3. Step 3: Cross multiply
    1,970.27x = 2,949.64 × 1,195.55
  4. Step 4: Simplify right side
    1,970.27x = 3,526,424.36
  5. Step 5: Solve for x
    x = 3,526,424.36/1,970.27
  6. Step 6: Final answer
    x = 1,789.82

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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.