Home / 3,139.43-4,330.55-2,020.01

Finding the Fourth Proportional to 3,139.43, 4,330.55 and 2,020.01

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Solution

The fourth proportional to 3,139.43, 4,330.55 and 2,020.01 is: 2,786.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.43 : 4,330.55 = 2,020.01 : x
  2. Step 2: Convert to fraction form
    3,139.43/4,330.55 = 2,020.01/x
  3. Step 3: Cross multiply
    3,139.43x = 4,330.55 × 2,020.01
  4. Step 4: Simplify right side
    3,139.43x = 8,747,737.70
  5. Step 5: Solve for x
    x = 8,747,737.70/3,139.43
  6. Step 6: Final answer
    x = 2,786.41

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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.