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Finding the Fourth Proportional to 6,453.84, 8,905.23 and 3,800.28

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Solution

The fourth proportional to 6,453.84, 8,905.23 and 3,800.28 is: 5,243.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,453.84 : 8,905.23 = 3,800.28 : x
  2. Step 2: Convert to fraction form
    6,453.84/8,905.23 = 3,800.28/x
  3. Step 3: Cross multiply
    6,453.84x = 8,905.23 × 3,800.28
  4. Step 4: Simplify right side
    6,453.84x = 33,842,367.46
  5. Step 5: Solve for x
    x = 33,842,367.46/6,453.84
  6. Step 6: Final answer
    x = 5,243.76

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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.