Home / 2,859.79-3,942.73-2,062.45

Finding the Fourth Proportional to 2,859.79, 3,942.73 and 2,062.45

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Solution

The fourth proportional to 2,859.79, 3,942.73 and 2,062.45 is: 2,843.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,859.79 : 3,942.73 = 2,062.45 : x
  2. Step 2: Convert to fraction form
    2,859.79/3,942.73 = 2,062.45/x
  3. Step 3: Cross multiply
    2,859.79x = 3,942.73 × 2,062.45
  4. Step 4: Simplify right side
    2,859.79x = 8,131,683.49
  5. Step 5: Solve for x
    x = 8,131,683.49/2,859.79
  6. Step 6: Final answer
    x = 2,843.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.