Home / 5,015.70-6,921.84-2,777.70

Finding the Fourth Proportional to 5,015.70, 6,921.84 and 2,777.70

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Solution

The fourth proportional to 5,015.70, 6,921.84 and 2,777.70 is: 3,833.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,015.70 : 6,921.84 = 2,777.70 : x
  2. Step 2: Convert to fraction form
    5,015.70/6,921.84 = 2,777.70/x
  3. Step 3: Cross multiply
    5,015.70x = 6,921.84 × 2,777.70
  4. Step 4: Simplify right side
    5,015.70x = 19,226,794.97
  5. Step 5: Solve for x
    x = 19,226,794.97/5,015.70
  6. Step 6: Final answer
    x = 3,833.32

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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.