Home / 3,819.64-5,271.10-2,141.06

Finding the Fourth Proportional to 3,819.64, 5,271.10 and 2,141.06

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Solution

The fourth proportional to 3,819.64, 5,271.10 and 2,141.06 is: 2,954.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,819.64 : 5,271.10 = 2,141.06 : x
  2. Step 2: Convert to fraction form
    3,819.64/5,271.10 = 2,141.06/x
  3. Step 3: Cross multiply
    3,819.64x = 5,271.10 × 2,141.06
  4. Step 4: Simplify right side
    3,819.64x = 11,285,741.37
  5. Step 5: Solve for x
    x = 11,285,741.37/3,819.64
  6. Step 6: Final answer
    x = 2,954.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.