Home / 3,881.37-5,821.47-1,416.20

Finding the Fourth Proportional to 3,881.37, 5,821.47 and 1,416.20

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Solution

The fourth proportional to 3,881.37, 5,821.47 and 1,416.20 is: 2,124.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.37 : 5,821.47 = 1,416.20 : x
  2. Step 2: Convert to fraction form
    3,881.37/5,821.47 = 1,416.20/x
  3. Step 3: Cross multiply
    3,881.37x = 5,821.47 × 1,416.20
  4. Step 4: Simplify right side
    3,881.37x = 8,244,369.45
  5. Step 5: Solve for x
    x = 8,244,369.45/3,881.37
  6. Step 6: Final answer
    x = 2,124.09

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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.