Home / 2,194.72-3,292.32-1,318.16

Finding the Fourth Proportional to 2,194.72, 3,292.32 and 1,318.16

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Solution

The fourth proportional to 2,194.72, 3,292.32 and 1,318.16 is: 1,977.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,194.72 : 3,292.32 = 1,318.16 : x
  2. Step 2: Convert to fraction form
    2,194.72/3,292.32 = 1,318.16/x
  3. Step 3: Cross multiply
    2,194.72x = 3,292.32 × 1,318.16
  4. Step 4: Simplify right side
    2,194.72x = 4,339,804.53
  5. Step 5: Solve for x
    x = 4,339,804.53/2,194.72
  6. Step 6: Final answer
    x = 1,977.38

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1.5x scale

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.