Home / 2,819.66-3,891.08-1,771.52

Finding the Fourth Proportional to 2,819.66, 3,891.08 and 1,771.52

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Solution

The fourth proportional to 2,819.66, 3,891.08 and 1,771.52 is: 2,444.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.66 : 3,891.08 = 1,771.52 : x
  2. Step 2: Convert to fraction form
    2,819.66/3,891.08 = 1,771.52/x
  3. Step 3: Cross multiply
    2,819.66x = 3,891.08 × 1,771.52
  4. Step 4: Simplify right side
    2,819.66x = 6,893,126.04
  5. Step 5: Solve for x
    x = 6,893,126.04/2,819.66
  6. Step 6: Final answer
    x = 2,444.67

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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.