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Finding the Fourth Proportional to 4,999.50, 6,899.85 and 3,738.39

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Solution

The fourth proportional to 4,999.50, 6,899.85 and 3,738.39 is: 5,159.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,999.50 : 6,899.85 = 3,738.39 : x
  2. Step 2: Convert to fraction form
    4,999.50/6,899.85 = 3,738.39/x
  3. Step 3: Cross multiply
    4,999.50x = 6,899.85 × 3,738.39
  4. Step 4: Simplify right side
    4,999.50x = 25,794,330.24
  5. Step 5: Solve for x
    x = 25,794,330.24/4,999.50
  6. Step 6: Final answer
    x = 5,159.38

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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.