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Finding the Fourth Proportional to 3,083.84, 4,624.80 and 892.72

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Solution

The fourth proportional to 3,083.84, 4,624.80 and 892.72 is: 1,338.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,083.84 : 4,624.80 = 892.72 : x
  2. Step 2: Convert to fraction form
    3,083.84/4,624.80 = 892.72/x
  3. Step 3: Cross multiply
    3,083.84x = 4,624.80 × 892.72
  4. Step 4: Simplify right side
    3,083.84x = 4,128,651.46
  5. Step 5: Solve for x
    x = 4,128,651.46/3,083.84
  6. Step 6: Final answer
    x = 1,338.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.