Home / 7,213.28-10,813.23-2,830.77

Finding the Fourth Proportional to 7,213.28, 10,813.23 and 2,830.77

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Solution

The fourth proportional to 7,213.28, 10,813.23 and 2,830.77 is: 4,243.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,213.28 : 10,813.23 = 2,830.77 : x
  2. Step 2: Convert to fraction form
    7,213.28/10,813.23 = 2,830.77/x
  3. Step 3: Cross multiply
    7,213.28x = 10,813.23 × 2,830.77
  4. Step 4: Simplify right side
    7,213.28x = 30,609,767.09
  5. Step 5: Solve for x
    x = 30,609,767.09/7,213.28
  6. Step 6: Final answer
    x = 4,243.53

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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.