Home / 1,974.23-2,724.73-1,188.44

Finding the Fourth Proportional to 1,974.23, 2,724.73 and 1,188.44

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Solution

The fourth proportional to 1,974.23, 2,724.73 and 1,188.44 is: 1,640.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974.23 : 2,724.73 = 1,188.44 : x
  2. Step 2: Convert to fraction form
    1,974.23/2,724.73 = 1,188.44/x
  3. Step 3: Cross multiply
    1,974.23x = 2,724.73 × 1,188.44
  4. Step 4: Simplify right side
    1,974.23x = 3,238,178.12
  5. Step 5: Solve for x
    x = 3,238,178.12/1,974.23
  6. Step 6: Final answer
    x = 1,640.22

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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.