Home / 2,749.70-4,124.55-2,615.30

Finding the Fourth Proportional to 2,749.70, 4,124.55 and 2,615.30

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Solution

The fourth proportional to 2,749.70, 4,124.55 and 2,615.30 is: 3,922.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,749.70 : 4,124.55 = 2,615.30 : x
  2. Step 2: Convert to fraction form
    2,749.70/4,124.55 = 2,615.30/x
  3. Step 3: Cross multiply
    2,749.70x = 4,124.55 × 2,615.30
  4. Step 4: Simplify right side
    2,749.70x = 10,786,935.62
  5. Step 5: Solve for x
    x = 10,786,935.62/2,749.70
  6. Step 6: Final answer
    x = 3,922.95

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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.