Home / 3,902.18-5,847.80-2,912.56

Finding the Fourth Proportional to 3,902.18, 5,847.80 and 2,912.56

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Solution

The fourth proportional to 3,902.18, 5,847.80 and 2,912.56 is: 4,364.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.18 : 5,847.80 = 2,912.56 : x
  2. Step 2: Convert to fraction form
    3,902.18/5,847.80 = 2,912.56/x
  3. Step 3: Cross multiply
    3,902.18x = 5,847.80 × 2,912.56
  4. Step 4: Simplify right side
    3,902.18x = 17,032,039.19
  5. Step 5: Solve for x
    x = 17,032,039.19/3,902.18
  6. Step 6: Final answer
    x = 4,364.76

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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.