Home / 3,261.71-4,893.11-1,618.31

Finding the Fourth Proportional to 3,261.71, 4,893.11 and 1,618.31

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Solution

The fourth proportional to 3,261.71, 4,893.11 and 1,618.31 is: 2,427.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261.71 : 4,893.11 = 1,618.31 : x
  2. Step 2: Convert to fraction form
    3,261.71/4,893.11 = 1,618.31/x
  3. Step 3: Cross multiply
    3,261.71x = 4,893.11 × 1,618.31
  4. Step 4: Simplify right side
    3,261.71x = 7,918,568.84
  5. Step 5: Solve for x
    x = 7,918,568.84/3,261.71
  6. Step 6: Final answer
    x = 2,427.74

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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.