Home / 7,146.28-10,720.27-2,704.64

Finding the Fourth Proportional to 7,146.28, 10,720.27 and 2,704.64

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Solution

The fourth proportional to 7,146.28, 10,720.27 and 2,704.64 is: 4,057.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146.28 : 10,720.27 = 2,704.64 : x
  2. Step 2: Convert to fraction form
    7,146.28/10,720.27 = 2,704.64/x
  3. Step 3: Cross multiply
    7,146.28x = 10,720.27 × 2,704.64
  4. Step 4: Simplify right side
    7,146.28x = 28,994,471.05
  5. Step 5: Solve for x
    x = 28,994,471.05/7,146.28
  6. Step 6: Final answer
    x = 4,057.28

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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.