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Finding the Fourth Proportional to 6,380.88, 8,805.52 and 3,586.36

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Solution

The fourth proportional to 6,380.88, 8,805.52 and 3,586.36 is: 4,949.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,380.88 : 8,805.52 = 3,586.36 : x
  2. Step 2: Convert to fraction form
    6,380.88/8,805.52 = 3,586.36/x
  3. Step 3: Cross multiply
    6,380.88x = 8,805.52 × 3,586.36
  4. Step 4: Simplify right side
    6,380.88x = 31,579,764.71
  5. Step 5: Solve for x
    x = 31,579,764.71/6,380.88
  6. Step 6: Final answer
    x = 4,949.12

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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.