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Finding the Fourth Proportional to 4,999.07, 6,905.72 and 3,609.11

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Solution

The fourth proportional to 4,999.07, 6,905.72 and 3,609.11 is: 4,985.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,999.07 : 6,905.72 = 3,609.11 : x
  2. Step 2: Convert to fraction form
    4,999.07/6,905.72 = 3,609.11/x
  3. Step 3: Cross multiply
    4,999.07x = 6,905.72 × 3,609.11
  4. Step 4: Simplify right side
    4,999.07x = 24,923,503.11
  5. Step 5: Solve for x
    x = 24,923,503.11/4,999.07
  6. Step 6: Final answer
    x = 4,985.63

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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.