Home / 7,213.56-10,820.40-2,019.48

Finding the Fourth Proportional to 7,213.56, 10,820.40 and 2,019.48

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Solution

The fourth proportional to 7,213.56, 10,820.40 and 2,019.48 is: 3,029.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,213.56 : 10,820.40 = 2,019.48 : x
  2. Step 2: Convert to fraction form
    7,213.56/10,820.40 = 2,019.48/x
  3. Step 3: Cross multiply
    7,213.56x = 10,820.40 × 2,019.48
  4. Step 4: Simplify right side
    7,213.56x = 21,851,581.39
  5. Step 5: Solve for x
    x = 21,851,581.39/7,213.56
  6. Step 6: Final answer
    x = 3,029.24

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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.