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Finding the Fourth Proportional to 6,403.95, 8,837.27 and 3,571.41

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Solution

The fourth proportional to 6,403.95, 8,837.27 and 3,571.41 is: 4,928.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,403.95 : 8,837.27 = 3,571.41 : x
  2. Step 2: Convert to fraction form
    6,403.95/8,837.27 = 3,571.41/x
  3. Step 3: Cross multiply
    6,403.95x = 8,837.27 × 3,571.41
  4. Step 4: Simplify right side
    6,403.95x = 31,561,523.38
  5. Step 5: Solve for x
    x = 31,561,523.38/6,403.95
  6. Step 6: Final answer
    x = 4,928.45

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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.