Home / 2,977.70-4,105.44-2,127.96

Finding the Fourth Proportional to 2,977.70, 4,105.44 and 2,127.96

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Solution

The fourth proportional to 2,977.70, 4,105.44 and 2,127.96 is: 2,933.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,977.70 : 4,105.44 = 2,127.96 : x
  2. Step 2: Convert to fraction form
    2,977.70/4,105.44 = 2,127.96/x
  3. Step 3: Cross multiply
    2,977.70x = 4,105.44 × 2,127.96
  4. Step 4: Simplify right side
    2,977.70x = 8,736,229.63
  5. Step 5: Solve for x
    x = 8,736,229.63/2,977.70
  6. Step 6: Final answer
    x = 2,933.89

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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.