Home / 1,986.06-2,740.74-1,101.92

Finding the Fourth Proportional to 1,986.06, 2,740.74 and 1,101.92

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Solution

The fourth proportional to 1,986.06, 2,740.74 and 1,101.92 is: 1,520.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986.06 : 2,740.74 = 1,101.92 : x
  2. Step 2: Convert to fraction form
    1,986.06/2,740.74 = 1,101.92/x
  3. Step 3: Cross multiply
    1,986.06x = 2,740.74 × 1,101.92
  4. Step 4: Simplify right side
    1,986.06x = 3,020,058.38
  5. Step 5: Solve for x
    x = 3,020,058.38/1,986.06
  6. Step 6: Final answer
    x = 1,520.63

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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.