Home / 1,977.24-2,728.36-1,137.94

Finding the Fourth Proportional to 1,977.24, 2,728.36 and 1,137.94

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Solution

The fourth proportional to 1,977.24, 2,728.36 and 1,137.94 is: 1,570.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977.24 : 2,728.36 = 1,137.94 : x
  2. Step 2: Convert to fraction form
    1,977.24/2,728.36 = 1,137.94/x
  3. Step 3: Cross multiply
    1,977.24x = 2,728.36 × 1,137.94
  4. Step 4: Simplify right side
    1,977.24x = 3,104,709.98
  5. Step 5: Solve for x
    x = 3,104,709.98/1,977.24
  6. Step 6: Final answer
    x = 1,570.22

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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.