Home / 5,015.37-6,921.15-2,777.31

Finding the Fourth Proportional to 5,015.37, 6,921.15 and 2,777.31

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Solution

The fourth proportional to 5,015.37, 6,921.15 and 2,777.31 is: 3,832.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,015.37 : 6,921.15 = 2,777.31 : x
  2. Step 2: Convert to fraction form
    5,015.37/6,921.15 = 2,777.31/x
  3. Step 3: Cross multiply
    5,015.37x = 6,921.15 × 2,777.31
  4. Step 4: Simplify right side
    5,015.37x = 19,222,179.11
  5. Step 5: Solve for x
    x = 19,222,179.11/5,015.37
  6. Step 6: Final answer
    x = 3,832.65

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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.