Home / 3,261.49-4,892.43-1,313.68

Finding the Fourth Proportional to 3,261.49, 4,892.43 and 1,313.68

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Solution

The fourth proportional to 3,261.49, 4,892.43 and 1,313.68 is: 1,970.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261.49 : 4,892.43 = 1,313.68 : x
  2. Step 2: Convert to fraction form
    3,261.49/4,892.43 = 1,313.68/x
  3. Step 3: Cross multiply
    3,261.49x = 4,892.43 × 1,313.68
  4. Step 4: Simplify right side
    3,261.49x = 6,427,087.44
  5. Step 5: Solve for x
    x = 6,427,087.44/3,261.49
  6. Step 6: Final answer
    x = 1,970.60

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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.