Home / 5,015.89-6,922.44-2,891.50

Finding the Fourth Proportional to 5,015.89, 6,922.44 and 2,891.50

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Solution

The fourth proportional to 5,015.89, 6,922.44 and 2,891.50 is: 3,990.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,015.89 : 6,922.44 = 2,891.50 : x
  2. Step 2: Convert to fraction form
    5,015.89/6,922.44 = 2,891.50/x
  3. Step 3: Cross multiply
    5,015.89x = 6,922.44 × 2,891.50
  4. Step 4: Simplify right side
    5,015.89x = 20,016,235.26
  5. Step 5: Solve for x
    x = 20,016,235.26/5,015.89
  6. Step 6: Final answer
    x = 3,990.57

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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.