Home / 7,101.68-10,651.88-2,172.48

Finding the Fourth Proportional to 7,101.68, 10,651.88 and 2,172.48

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Solution

The fourth proportional to 7,101.68, 10,651.88 and 2,172.48 is: 3,258.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,101.68 : 10,651.88 = 2,172.48 : x
  2. Step 2: Convert to fraction form
    7,101.68/10,651.88 = 2,172.48/x
  3. Step 3: Cross multiply
    7,101.68x = 10,651.88 × 2,172.48
  4. Step 4: Simplify right side
    7,101.68x = 23,140,996.26
  5. Step 5: Solve for x
    x = 23,140,996.26/7,101.68
  6. Step 6: Final answer
    x = 3,258.52

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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.