Home / 3,995.34-5,989.23-2,143.68

Finding the Fourth Proportional to 3,995.34, 5,989.23 and 2,143.68

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Solution

The fourth proportional to 3,995.34, 5,989.23 and 2,143.68 is: 3,213.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,995.34 : 5,989.23 = 2,143.68 : x
  2. Step 2: Convert to fraction form
    3,995.34/5,989.23 = 2,143.68/x
  3. Step 3: Cross multiply
    3,995.34x = 5,989.23 × 2,143.68
  4. Step 4: Simplify right side
    3,995.34x = 12,838,992.57
  5. Step 5: Solve for x
    x = 12,838,992.57/3,995.34
  6. Step 6: Final answer
    x = 3,213.49

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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.