Home / 2,758.10-4,137.15-1,664.60

Finding the Fourth Proportional to 2,758.10, 4,137.15 and 1,664.60

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Solution

The fourth proportional to 2,758.10, 4,137.15 and 1,664.60 is: 2,496.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758.10 : 4,137.15 = 1,664.60 : x
  2. Step 2: Convert to fraction form
    2,758.10/4,137.15 = 1,664.60/x
  3. Step 3: Cross multiply
    2,758.10x = 4,137.15 × 1,664.60
  4. Step 4: Simplify right side
    2,758.10x = 6,886,699.89
  5. Step 5: Solve for x
    x = 6,886,699.89/2,758.10
  6. Step 6: Final answer
    x = 2,496.90

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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.