Home / 2,513.28-3,768.48-1,213.44

Finding the Fourth Proportional to 2,513.28, 3,768.48 and 1,213.44

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Solution

The fourth proportional to 2,513.28, 3,768.48 and 1,213.44 is: 1,819.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,513.28 : 3,768.48 = 1,213.44 : x
  2. Step 2: Convert to fraction form
    2,513.28/3,768.48 = 1,213.44/x
  3. Step 3: Cross multiply
    2,513.28x = 3,768.48 × 1,213.44
  4. Step 4: Simplify right side
    2,513.28x = 4,572,824.37
  5. Step 5: Solve for x
    x = 4,572,824.37/2,513.28
  6. Step 6: Final answer
    x = 1,819.46

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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.