Home / 2,622.37-3,933.86-1,977.20

Finding the Fourth Proportional to 2,622.37, 3,933.86 and 1,977.20

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Solution

The fourth proportional to 2,622.37, 3,933.86 and 1,977.20 is: 2,966.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,622.37 : 3,933.86 = 1,977.20 : x
  2. Step 2: Convert to fraction form
    2,622.37/3,933.86 = 1,977.20/x
  3. Step 3: Cross multiply
    2,622.37x = 3,933.86 × 1,977.20
  4. Step 4: Simplify right side
    2,622.37x = 7,778,027.94
  5. Step 5: Solve for x
    x = 7,778,027.94/2,622.37
  6. Step 6: Final answer
    x = 2,966.03

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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.