Home / 2,091.93-3,136.55-1,214.61

Finding the Fourth Proportional to 2,091.93, 3,136.55 and 1,214.61

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Solution

The fourth proportional to 2,091.93, 3,136.55 and 1,214.61 is: 1,821.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091.93 : 3,136.55 = 1,214.61 : x
  2. Step 2: Convert to fraction form
    2,091.93/3,136.55 = 1,214.61/x
  3. Step 3: Cross multiply
    2,091.93x = 3,136.55 × 1,214.61
  4. Step 4: Simplify right side
    2,091.93x = 3,809,678.92
  5. Step 5: Solve for x
    x = 3,809,678.92/2,091.93
  6. Step 6: Final answer
    x = 1,821.13

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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.