Home / 7,215.21-10,822.59-2,021.07

Finding the Fourth Proportional to 7,215.21, 10,822.59 and 2,021.07

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Solution

The fourth proportional to 7,215.21, 10,822.59 and 2,021.07 is: 3,031.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.21 : 10,822.59 = 2,021.07 : x
  2. Step 2: Convert to fraction form
    7,215.21/10,822.59 = 2,021.07/x
  3. Step 3: Cross multiply
    7,215.21x = 10,822.59 × 2,021.07
  4. Step 4: Simplify right side
    7,215.21x = 21,873,211.97
  5. Step 5: Solve for x
    x = 21,873,211.97/7,215.21
  6. Step 6: Final answer
    x = 3,031.54

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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.