Home / 5,081.37-7,012.93-3,091.80

Finding the Fourth Proportional to 5,081.37, 7,012.93 and 3,091.80

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Solution

The fourth proportional to 5,081.37, 7,012.93 and 3,091.80 is: 4,267.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,081.37 : 7,012.93 = 3,091.80 : x
  2. Step 2: Convert to fraction form
    5,081.37/7,012.93 = 3,091.80/x
  3. Step 3: Cross multiply
    5,081.37x = 7,012.93 × 3,091.80
  4. Step 4: Simplify right side
    5,081.37x = 21,682,601.34
  5. Step 5: Solve for x
    x = 21,682,601.34/5,081.37
  6. Step 6: Final answer
    x = 4,267.08

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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.