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Finding the Fourth Proportional to 6,999.35, 9,659.01 and 3,974.44

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Solution

The fourth proportional to 6,999.35, 9,659.01 and 3,974.44 is: 5,484.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,999.35 : 9,659.01 = 3,974.44 : x
  2. Step 2: Convert to fraction form
    6,999.35/9,659.01 = 3,974.44/x
  3. Step 3: Cross multiply
    6,999.35x = 9,659.01 × 3,974.44
  4. Step 4: Simplify right side
    6,999.35x = 38,389,158.20
  5. Step 5: Solve for x
    x = 38,389,158.20/6,999.35
  6. Step 6: Final answer
    x = 5,484.67

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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.