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Finding the Fourth Proportional to 2,679.49, 4,015.99 and 1,137.25

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Solution

The fourth proportional to 2,679.49, 4,015.99 and 1,137.25 is: 1,704.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679.49 : 4,015.99 = 1,137.25 : x
  2. Step 2: Convert to fraction form
    2,679.49/4,015.99 = 1,137.25/x
  3. Step 3: Cross multiply
    2,679.49x = 4,015.99 × 1,137.25
  4. Step 4: Simplify right side
    2,679.49x = 4,567,184.63
  5. Step 5: Solve for x
    x = 4,567,184.63/2,679.49
  6. Step 6: Final answer
    x = 1,704.50

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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.