Home / 2,926.14-4,039.56-1,986.90

Finding the Fourth Proportional to 2,926.14, 4,039.56 and 1,986.90

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Solution

The fourth proportional to 2,926.14, 4,039.56 and 1,986.90 is: 2,742.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,926.14 : 4,039.56 = 1,986.90 : x
  2. Step 2: Convert to fraction form
    2,926.14/4,039.56 = 1,986.90/x
  3. Step 3: Cross multiply
    2,926.14x = 4,039.56 × 1,986.90
  4. Step 4: Simplify right side
    2,926.14x = 8,026,201.76
  5. Step 5: Solve for x
    x = 8,026,201.76/2,926.14
  6. Step 6: Final answer
    x = 2,742.93

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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.