Home / 5,016.08-6,921.78-2,891.54

Finding the Fourth Proportional to 5,016.08, 6,921.78 and 2,891.54

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Solution

The fourth proportional to 5,016.08, 6,921.78 and 2,891.54 is: 3,990.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,016.08 : 6,921.78 = 2,891.54 : x
  2. Step 2: Convert to fraction form
    5,016.08/6,921.78 = 2,891.54/x
  3. Step 3: Cross multiply
    5,016.08x = 6,921.78 × 2,891.54
  4. Step 4: Simplify right side
    5,016.08x = 20,014,603.74
  5. Step 5: Solve for x
    x = 20,014,603.74/5,016.08
  6. Step 6: Final answer
    x = 3,990.09

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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.