Home / 2,812.70-4,213.78-2,353.43

Finding the Fourth Proportional to 2,812.70, 4,213.78 and 2,353.43

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Solution

The fourth proportional to 2,812.70, 4,213.78 and 2,353.43 is: 3,525.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.70 : 4,213.78 = 2,353.43 : x
  2. Step 2: Convert to fraction form
    2,812.70/4,213.78 = 2,353.43/x
  3. Step 3: Cross multiply
    2,812.70x = 4,213.78 × 2,353.43
  4. Step 4: Simplify right side
    2,812.70x = 9,916,836.27
  5. Step 5: Solve for x
    x = 9,916,836.27/2,812.70
  6. Step 6: Final answer
    x = 3,525.74

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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.