Home / 3,981.95-5,945.88-3,150.89

Finding the Fourth Proportional to 3,981.95, 5,945.88 and 3,150.89

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Solution

The fourth proportional to 3,981.95, 5,945.88 and 3,150.89 is: 4,704.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.95 : 5,945.88 = 3,150.89 : x
  2. Step 2: Convert to fraction form
    3,981.95/5,945.88 = 3,150.89/x
  3. Step 3: Cross multiply
    3,981.95x = 5,945.88 × 3,150.89
  4. Step 4: Simplify right side
    3,981.95x = 18,734,813.83
  5. Step 5: Solve for x
    x = 18,734,813.83/3,981.95
  6. Step 6: Final answer
    x = 4,704.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.