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Finding the Fourth Proportional to 7,797.31, 11,698.88 and 4,679.55

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Solution

The fourth proportional to 7,797.31, 11,698.88 and 4,679.55 is: 7,021.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,797.31 : 11,698.88 = 4,679.55 : x
  2. Step 2: Convert to fraction form
    7,797.31/11,698.88 = 4,679.55/x
  3. Step 3: Cross multiply
    7,797.31x = 11,698.88 × 4,679.55
  4. Step 4: Simplify right side
    7,797.31x = 54,745,493.90
  5. Step 5: Solve for x
    x = 54,745,493.90/7,797.31
  6. Step 6: Final answer
    x = 7,021.07

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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.