Home / 3,941.10-5,900.72-1,989.23

Finding the Fourth Proportional to 3,941.10, 5,900.72 and 1,989.23

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Solution

The fourth proportional to 3,941.10, 5,900.72 and 1,989.23 is: 2,978.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,941.10 : 5,900.72 = 1,989.23 : x
  2. Step 2: Convert to fraction form
    3,941.10/5,900.72 = 1,989.23/x
  3. Step 3: Cross multiply
    3,941.10x = 5,900.72 × 1,989.23
  4. Step 4: Simplify right side
    3,941.10x = 11,737,849.80
  5. Step 5: Solve for x
    x = 11,737,849.80/3,941.10
  6. Step 6: Final answer
    x = 2,978.32

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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.