Home / 2,928.42-4,039.56-2,042.67

Finding the Fourth Proportional to 2,928.42, 4,039.56 and 2,042.67

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Solution

The fourth proportional to 2,928.42, 4,039.56 and 2,042.67 is: 2,817.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.42 : 4,039.56 = 2,042.67 : x
  2. Step 2: Convert to fraction form
    2,928.42/4,039.56 = 2,042.67/x
  3. Step 3: Cross multiply
    2,928.42x = 4,039.56 × 2,042.67
  4. Step 4: Simplify right side
    2,928.42x = 8,251,488.03
  5. Step 5: Solve for x
    x = 8,251,488.03/2,928.42
  6. Step 6: Final answer
    x = 2,817.73

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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.