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Finding the Fourth Proportional to 6,394.15, 8,824.44 and 3,561.76

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Solution

The fourth proportional to 6,394.15, 8,824.44 and 3,561.76 is: 4,915.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,394.15 : 8,824.44 = 3,561.76 : x
  2. Step 2: Convert to fraction form
    6,394.15/8,824.44 = 3,561.76/x
  3. Step 3: Cross multiply
    6,394.15x = 8,824.44 × 3,561.76
  4. Step 4: Simplify right side
    6,394.15x = 31,430,537.41
  5. Step 5: Solve for x
    x = 31,430,537.41/6,394.15
  6. Step 6: Final answer
    x = 4,915.51

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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.