Home / 7,150.90-10,729.30-3,146.23

Finding the Fourth Proportional to 7,150.90, 10,729.30 and 3,146.23

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Solution

The fourth proportional to 7,150.90, 10,729.30 and 3,146.23 is: 4,720.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,150.90 : 10,729.30 = 3,146.23 : x
  2. Step 2: Convert to fraction form
    7,150.90/10,729.30 = 3,146.23/x
  3. Step 3: Cross multiply
    7,150.90x = 10,729.30 × 3,146.23
  4. Step 4: Simplify right side
    7,150.90x = 33,756,845.54
  5. Step 5: Solve for x
    x = 33,756,845.54/7,150.90
  6. Step 6: Final answer
    x = 4,720.64

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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.