Home / 5,111.70-7,054.22-2,873.57

Finding the Fourth Proportional to 5,111.70, 7,054.22 and 2,873.57

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Solution

The fourth proportional to 5,111.70, 7,054.22 and 2,873.57 is: 3,965.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,111.70 : 7,054.22 = 2,873.57 : x
  2. Step 2: Convert to fraction form
    5,111.70/7,054.22 = 2,873.57/x
  3. Step 3: Cross multiply
    5,111.70x = 7,054.22 × 2,873.57
  4. Step 4: Simplify right side
    5,111.70x = 20,270,766.88
  5. Step 5: Solve for x
    x = 20,270,766.88/5,111.70
  6. Step 6: Final answer
    x = 3,965.57

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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.