Home / 1,974.42-2,724.32-1,188.52

Finding the Fourth Proportional to 1,974.42, 2,724.32 and 1,188.52

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Solution

The fourth proportional to 1,974.42, 2,724.32 and 1,188.52 is: 1,639.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974.42 : 2,724.32 = 1,188.52 : x
  2. Step 2: Convert to fraction form
    1,974.42/2,724.32 = 1,188.52/x
  3. Step 3: Cross multiply
    1,974.42x = 2,724.32 × 1,188.52
  4. Step 4: Simplify right side
    1,974.42x = 3,237,908.81
  5. Step 5: Solve for x
    x = 3,237,908.81/1,974.42
  6. Step 6: Final answer
    x = 1,639.93

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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.