Home / 5,015.44-6,921.04-2,777.28

Finding the Fourth Proportional to 5,015.44, 6,921.04 and 2,777.28

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Solution

The fourth proportional to 5,015.44, 6,921.04 and 2,777.28 is: 3,832.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,015.44 : 6,921.04 = 2,777.28 : x
  2. Step 2: Convert to fraction form
    5,015.44/6,921.04 = 2,777.28/x
  3. Step 3: Cross multiply
    5,015.44x = 6,921.04 × 2,777.28
  4. Step 4: Simplify right side
    5,015.44x = 19,221,665.97
  5. Step 5: Solve for x
    x = 19,221,665.97/5,015.44
  6. Step 6: Final answer
    x = 3,832.50

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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.