Home / 5,015.77-6,922.43-2,891.23

Finding the Fourth Proportional to 5,015.77, 6,922.43 and 2,891.23

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Solution

The fourth proportional to 5,015.77, 6,922.43 and 2,891.23 is: 3,990.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,015.77 : 6,922.43 = 2,891.23 : x
  2. Step 2: Convert to fraction form
    5,015.77/6,922.43 = 2,891.23/x
  3. Step 3: Cross multiply
    5,015.77x = 6,922.43 × 2,891.23
  4. Step 4: Simplify right side
    5,015.77x = 20,014,337.29
  5. Step 5: Solve for x
    x = 20,014,337.29/5,015.77
  6. Step 6: Final answer
    x = 3,990.28

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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.