Home / 2,112.48-3,165.35-1,416.60

Finding the Fourth Proportional to 2,112.48, 3,165.35 and 1,416.60

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Solution

The fourth proportional to 2,112.48, 3,165.35 and 1,416.60 is: 2,122.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,112.48 : 3,165.35 = 1,416.60 : x
  2. Step 2: Convert to fraction form
    2,112.48/3,165.35 = 1,416.60/x
  3. Step 3: Cross multiply
    2,112.48x = 3,165.35 × 1,416.60
  4. Step 4: Simplify right side
    2,112.48x = 4,484,027.73
  5. Step 5: Solve for x
    x = 4,484,027.73/2,112.48
  6. Step 6: Final answer
    x = 2,122.64

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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.