Home / 7,539.70-11,310.90-3,157.60

Finding the Fourth Proportional to 7,539.70, 11,310.90 and 3,157.60

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Solution

The fourth proportional to 7,539.70, 11,310.90 and 3,157.60 is: 4,736.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,539.70 : 11,310.90 = 3,157.60 : x
  2. Step 2: Convert to fraction form
    7,539.70/11,310.90 = 3,157.60/x
  3. Step 3: Cross multiply
    7,539.70x = 11,310.90 × 3,157.60
  4. Step 4: Simplify right side
    7,539.70x = 35,715,297.84
  5. Step 5: Solve for x
    x = 35,715,297.84/7,539.70
  6. Step 6: Final answer
    x = 4,736.97

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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.