Home / 1,945.47-2,683.99-1,198.13

Finding the Fourth Proportional to 1,945.47, 2,683.99 and 1,198.13

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Solution

The fourth proportional to 1,945.47, 2,683.99 and 1,198.13 is: 1,652.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945.47 : 2,683.99 = 1,198.13 : x
  2. Step 2: Convert to fraction form
    1,945.47/2,683.99 = 1,198.13/x
  3. Step 3: Cross multiply
    1,945.47x = 2,683.99 × 1,198.13
  4. Step 4: Simplify right side
    1,945.47x = 3,215,772.65
  5. Step 5: Solve for x
    x = 3,215,772.65/1,945.47
  6. Step 6: Final answer
    x = 1,652.95

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1.5x scale

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.