Home / 3,081.23-4,252.09-1,683.98

Finding the Fourth Proportional to 3,081.23, 4,252.09 and 1,683.98

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Solution

The fourth proportional to 3,081.23, 4,252.09 and 1,683.98 is: 2,323.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.23 : 4,252.09 = 1,683.98 : x
  2. Step 2: Convert to fraction form
    3,081.23/4,252.09 = 1,683.98/x
  3. Step 3: Cross multiply
    3,081.23x = 4,252.09 × 1,683.98
  4. Step 4: Simplify right side
    3,081.23x = 7,160,425.44
  5. Step 5: Solve for x
    x = 7,160,425.44/3,081.23
  6. Step 6: Final answer
    x = 2,323.89

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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.