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Finding the Fourth Proportional to 6,270.79, 8,653.79 and 3,438.42

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Solution

The fourth proportional to 6,270.79, 8,653.79 and 3,438.42 is: 4,745.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,270.79 : 8,653.79 = 3,438.42 : x
  2. Step 2: Convert to fraction form
    6,270.79/8,653.79 = 3,438.42/x
  3. Step 3: Cross multiply
    6,270.79x = 8,653.79 × 3,438.42
  4. Step 4: Simplify right side
    6,270.79x = 29,755,370.09
  5. Step 5: Solve for x
    x = 29,755,370.09/6,270.79
  6. Step 6: Final answer
    x = 4,745.08

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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.