Home / 5,172.90-7,759.36-2,708.44

Finding the Fourth Proportional to 5,172.90, 7,759.36 and 2,708.44

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Solution

The fourth proportional to 5,172.90, 7,759.36 and 2,708.44 is: 4,062.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.90 : 7,759.36 = 2,708.44 : x
  2. Step 2: Convert to fraction form
    5,172.90/7,759.36 = 2,708.44/x
  3. Step 3: Cross multiply
    5,172.90x = 7,759.36 × 2,708.44
  4. Step 4: Simplify right side
    5,172.90x = 21,015,744.99
  5. Step 5: Solve for x
    x = 21,015,744.99/5,172.90
  6. Step 6: Final answer
    x = 4,062.67

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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.