Home / 4,078.36-6,112-2,126.60

Finding the Fourth Proportional to 4,078.36, 6,112 and 2,126.60

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Solution

The fourth proportional to 4,078.36, 6,112 and 2,126.60 is: 3,187.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.36 : 6,112 = 2,126.60 : x
  2. Step 2: Convert to fraction form
    4,078.36/6,112 = 2,126.60/x
  3. Step 3: Cross multiply
    4,078.36x = 6,112 × 2,126.60
  4. Step 4: Simplify right side
    4,078.36x = 12,997,779.20
  5. Step 5: Solve for x
    x = 12,997,779.20/4,078.36
  6. Step 6: Final answer
    x = 3,187.01

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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.