Home / 5,016.33-6,921.65-2,891.60

Finding the Fourth Proportional to 5,016.33, 6,921.65 and 2,891.60

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Solution

The fourth proportional to 5,016.33, 6,921.65 and 2,891.60 is: 3,989.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,016.33 : 6,921.65 = 2,891.60 : x
  2. Step 2: Convert to fraction form
    5,016.33/6,921.65 = 2,891.60/x
  3. Step 3: Cross multiply
    5,016.33x = 6,921.65 × 2,891.60
  4. Step 4: Simplify right side
    5,016.33x = 20,014,641.72
  5. Step 5: Solve for x
    x = 20,014,641.72/5,016.33
  6. Step 6: Final answer
    x = 3,989.90

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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.