Home / 5,016.63-6,921.97-2,778.40

Finding the Fourth Proportional to 5,016.63, 6,921.97 and 2,778.40

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Solution

The fourth proportional to 5,016.63, 6,921.97 and 2,778.40 is: 3,833.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,016.63 : 6,921.97 = 2,778.40 : x
  2. Step 2: Convert to fraction form
    5,016.63/6,921.97 = 2,778.40/x
  3. Step 3: Cross multiply
    5,016.63x = 6,921.97 × 2,778.40
  4. Step 4: Simplify right side
    5,016.63x = 19,232,001.45
  5. Step 5: Solve for x
    x = 19,232,001.45/5,016.63
  6. Step 6: Final answer
    x = 3,833.65

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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.