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Finding the Fourth Proportional to 3,355.29, 4,630.23 and 1,939.77

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Solution

The fourth proportional to 3,355.29, 4,630.23 and 1,939.77 is: 2,676.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,355.29 : 4,630.23 = 1,939.77 : x
  2. Step 2: Convert to fraction form
    3,355.29/4,630.23 = 1,939.77/x
  3. Step 3: Cross multiply
    3,355.29x = 4,630.23 × 1,939.77
  4. Step 4: Simplify right side
    3,355.29x = 8,981,581.25
  5. Step 5: Solve for x
    x = 8,981,581.25/3,355.29
  6. Step 6: Final answer
    x = 2,676.84

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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.