Home / 7,138.10-10,705.26-3,241.64

Finding the Fourth Proportional to 7,138.10, 10,705.26 and 3,241.64

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Solution

The fourth proportional to 7,138.10, 10,705.26 and 3,241.64 is: 4,861.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,138.10 : 10,705.26 = 3,241.64 : x
  2. Step 2: Convert to fraction form
    7,138.10/10,705.26 = 3,241.64/x
  3. Step 3: Cross multiply
    7,138.10x = 10,705.26 × 3,241.64
  4. Step 4: Simplify right side
    7,138.10x = 34,702,599.03
  5. Step 5: Solve for x
    x = 34,702,599.03/7,138.10
  6. Step 6: Final answer
    x = 4,861.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.