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Finding the Fourth Proportional to 3,433.89, 4,738.77 and 1,861.99

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Solution

The fourth proportional to 3,433.89, 4,738.77 and 1,861.99 is: 2,569.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,433.89 : 4,738.77 = 1,861.99 : x
  2. Step 2: Convert to fraction form
    3,433.89/4,738.77 = 1,861.99/x
  3. Step 3: Cross multiply
    3,433.89x = 4,738.77 × 1,861.99
  4. Step 4: Simplify right side
    3,433.89x = 8,823,542.35
  5. Step 5: Solve for x
    x = 8,823,542.35/3,433.89
  6. Step 6: Final answer
    x = 2,569.55

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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.