Home / 2,028.20-3,038.70-1,740.20

Finding the Fourth Proportional to 2,028.20, 3,038.70 and 1,740.20

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Solution

The fourth proportional to 2,028.20, 3,038.70 and 1,740.20 is: 2,607.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,028.20 : 3,038.70 = 1,740.20 : x
  2. Step 2: Convert to fraction form
    2,028.20/3,038.70 = 1,740.20/x
  3. Step 3: Cross multiply
    2,028.20x = 3,038.70 × 1,740.20
  4. Step 4: Simplify right side
    2,028.20x = 5,287,945.74
  5. Step 5: Solve for x
    x = 5,287,945.74/2,028.20
  6. Step 6: Final answer
    x = 2,607.21

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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.