Home / 2,930.13-4,040.96-1,936.42

Finding the Fourth Proportional to 2,930.13, 4,040.96 and 1,936.42

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Solution

The fourth proportional to 2,930.13, 4,040.96 and 1,936.42 is: 2,670.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.13 : 4,040.96 = 1,936.42 : x
  2. Step 2: Convert to fraction form
    2,930.13/4,040.96 = 1,936.42/x
  3. Step 3: Cross multiply
    2,930.13x = 4,040.96 × 1,936.42
  4. Step 4: Simplify right side
    2,930.13x = 7,824,975.98
  5. Step 5: Solve for x
    x = 7,824,975.98/2,930.13
  6. Step 6: Final answer
    x = 2,670.52

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1.5x scale

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.