Home / 2,790.93-4,185.27-1,209.75

Finding the Fourth Proportional to 2,790.93, 4,185.27 and 1,209.75

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Solution

The fourth proportional to 2,790.93, 4,185.27 and 1,209.75 is: 1,814.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.93 : 4,185.27 = 1,209.75 : x
  2. Step 2: Convert to fraction form
    2,790.93/4,185.27 = 1,209.75/x
  3. Step 3: Cross multiply
    2,790.93x = 4,185.27 × 1,209.75
  4. Step 4: Simplify right side
    2,790.93x = 5,063,130.38
  5. Step 5: Solve for x
    x = 5,063,130.38/2,790.93
  6. Step 6: Final answer
    x = 1,814.14

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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.