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Finding the Fourth Proportional to 6,361.89, 8,776.42 and 4,124.49

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Solution

The fourth proportional to 6,361.89, 8,776.42 and 4,124.49 is: 5,689.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,361.89 : 8,776.42 = 4,124.49 : x
  2. Step 2: Convert to fraction form
    6,361.89/8,776.42 = 4,124.49/x
  3. Step 3: Cross multiply
    6,361.89x = 8,776.42 × 4,124.49
  4. Step 4: Simplify right side
    6,361.89x = 36,198,256.53
  5. Step 5: Solve for x
    x = 36,198,256.53/6,361.89
  6. Step 6: Final answer
    x = 5,689.86

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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.