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Finding the Fourth Proportional to 2,819.67, 3,891.54 and 1,700.67

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Solution

The fourth proportional to 2,819.67, 3,891.54 and 1,700.67 is: 2,347.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.67 : 3,891.54 = 1,700.67 : x
  2. Step 2: Convert to fraction form
    2,819.67/3,891.54 = 1,700.67/x
  3. Step 3: Cross multiply
    2,819.67x = 3,891.54 × 1,700.67
  4. Step 4: Simplify right side
    2,819.67x = 6,618,225.33
  5. Step 5: Solve for x
    x = 6,618,225.33/2,819.67
  6. Step 6: Final answer
    x = 2,347.16

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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.