Home / 3,041.80-4,562.70-2,120.20

Finding the Fourth Proportional to 3,041.80, 4,562.70 and 2,120.20

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Solution

The fourth proportional to 3,041.80, 4,562.70 and 2,120.20 is: 3,180.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,041.80 : 4,562.70 = 2,120.20 : x
  2. Step 2: Convert to fraction form
    3,041.80/4,562.70 = 2,120.20/x
  3. Step 3: Cross multiply
    3,041.80x = 4,562.70 × 2,120.20
  4. Step 4: Simplify right side
    3,041.80x = 9,673,836.54
  5. Step 5: Solve for x
    x = 9,673,836.54/3,041.80
  6. Step 6: Final answer
    x = 3,180.30

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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.