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Finding the Fourth Proportional to 4,786.70, 7,170.59 and 4,427.84

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Solution

The fourth proportional to 4,786.70, 7,170.59 and 4,427.84 is: 6,633.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,786.70 : 7,170.59 = 4,427.84 : x
  2. Step 2: Convert to fraction form
    4,786.70/7,170.59 = 4,427.84/x
  3. Step 3: Cross multiply
    4,786.70x = 7,170.59 × 4,427.84
  4. Step 4: Simplify right side
    4,786.70x = 31,750,203.09
  5. Step 5: Solve for x
    x = 31,750,203.09/4,786.70
  6. Step 6: Final answer
    x = 6,633.00

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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.