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Finding the Fourth Proportional to 6,369.85, 8,790.95 and 3,537.78

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Solution

The fourth proportional to 6,369.85, 8,790.95 and 3,537.78 is: 4,882.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,369.85 : 8,790.95 = 3,537.78 : x
  2. Step 2: Convert to fraction form
    6,369.85/8,790.95 = 3,537.78/x
  3. Step 3: Cross multiply
    6,369.85x = 8,790.95 × 3,537.78
  4. Step 4: Simplify right side
    6,369.85x = 31,100,447.09
  5. Step 5: Solve for x
    x = 31,100,447.09/6,369.85
  6. Step 6: Final answer
    x = 4,882.45

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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.