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Finding the Fourth Proportional to 3,517.84, 5,273.84 and 1,325.36

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Solution

The fourth proportional to 3,517.84, 5,273.84 and 1,325.36 is: 1,986.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,517.84 : 5,273.84 = 1,325.36 : x
  2. Step 2: Convert to fraction form
    3,517.84/5,273.84 = 1,325.36/x
  3. Step 3: Cross multiply
    3,517.84x = 5,273.84 × 1,325.36
  4. Step 4: Simplify right side
    3,517.84x = 6,989,736.58
  5. Step 5: Solve for x
    x = 6,989,736.58/3,517.84
  6. Step 6: Final answer
    x = 1,986.94

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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.