Home / 7,215.34-10,823.43-2,021.62

Finding the Fourth Proportional to 7,215.34, 10,823.43 and 2,021.62

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Solution

The fourth proportional to 7,215.34, 10,823.43 and 2,021.62 is: 3,032.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.34 : 10,823.43 = 2,021.62 : x
  2. Step 2: Convert to fraction form
    7,215.34/10,823.43 = 2,021.62/x
  3. Step 3: Cross multiply
    7,215.34x = 10,823.43 × 2,021.62
  4. Step 4: Simplify right side
    7,215.34x = 21,880,862.56
  5. Step 5: Solve for x
    x = 21,880,862.56/7,215.34
  6. Step 6: Final answer
    x = 3,032.55

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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.