Home / 1,986.96-2,977.26-1,677.36

Finding the Fourth Proportional to 1,986.96, 2,977.26 and 1,677.36

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Solution

The fourth proportional to 1,986.96, 2,977.26 and 1,677.36 is: 2,513.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986.96 : 2,977.26 = 1,677.36 : x
  2. Step 2: Convert to fraction form
    1,986.96/2,977.26 = 1,677.36/x
  3. Step 3: Cross multiply
    1,986.96x = 2,977.26 × 1,677.36
  4. Step 4: Simplify right side
    1,986.96x = 4,993,936.83
  5. Step 5: Solve for x
    x = 4,993,936.83/1,986.96
  6. Step 6: Final answer
    x = 2,513.36

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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.