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Finding the Fourth Proportional to 6,369.75, 8,790.38 and 3,575.43

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Solution

The fourth proportional to 6,369.75, 8,790.38 and 3,575.43 is: 4,934.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,369.75 : 8,790.38 = 3,575.43 : x
  2. Step 2: Convert to fraction form
    6,369.75/8,790.38 = 3,575.43/x
  3. Step 3: Cross multiply
    6,369.75x = 8,790.38 × 3,575.43
  4. Step 4: Simplify right side
    6,369.75x = 31,429,370.49
  5. Step 5: Solve for x
    x = 31,429,370.49/6,369.75
  6. Step 6: Final answer
    x = 4,934.16

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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.