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Finding the Fourth Proportional to 3,383.76, 4,669.02 and 1,891.62

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Solution

The fourth proportional to 3,383.76, 4,669.02 and 1,891.62 is: 2,610.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,383.76 : 4,669.02 = 1,891.62 : x
  2. Step 2: Convert to fraction form
    3,383.76/4,669.02 = 1,891.62/x
  3. Step 3: Cross multiply
    3,383.76x = 4,669.02 × 1,891.62
  4. Step 4: Simplify right side
    3,383.76x = 8,832,011.61
  5. Step 5: Solve for x
    x = 8,832,011.61/3,383.76
  6. Step 6: Final answer
    x = 2,610.12

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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.