Home / 7,771.19-11,656.82-2,838.79

Finding the Fourth Proportional to 7,771.19, 11,656.82 and 2,838.79

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Solution

The fourth proportional to 7,771.19, 11,656.82 and 2,838.79 is: 4,258.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,771.19 : 11,656.82 = 2,838.79 : x
  2. Step 2: Convert to fraction form
    7,771.19/11,656.82 = 2,838.79/x
  3. Step 3: Cross multiply
    7,771.19x = 11,656.82 × 2,838.79
  4. Step 4: Simplify right side
    7,771.19x = 33,091,242.00
  5. Step 5: Solve for x
    x = 33,091,242.00/7,771.19
  6. Step 6: Final answer
    x = 4,258.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.