Home / 7,215.47-10,823.61-2,021.75

Finding the Fourth Proportional to 7,215.47, 10,823.61 and 2,021.75

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Solution

The fourth proportional to 7,215.47, 10,823.61 and 2,021.75 is: 3,032.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.47 : 10,823.61 = 2,021.75 : x
  2. Step 2: Convert to fraction form
    7,215.47/10,823.61 = 2,021.75/x
  3. Step 3: Cross multiply
    7,215.47x = 10,823.61 × 2,021.75
  4. Step 4: Simplify right side
    7,215.47x = 21,882,627.57
  5. Step 5: Solve for x
    x = 21,882,627.57/7,215.47
  6. Step 6: Final answer
    x = 3,032.74

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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.