Home / 3,441.20-5,156.73-1,539.21

Finding the Fourth Proportional to 3,441.20, 5,156.73 and 1,539.21

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Solution

The fourth proportional to 3,441.20, 5,156.73 and 1,539.21 is: 2,306.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,441.20 : 5,156.73 = 1,539.21 : x
  2. Step 2: Convert to fraction form
    3,441.20/5,156.73 = 1,539.21/x
  3. Step 3: Cross multiply
    3,441.20x = 5,156.73 × 1,539.21
  4. Step 4: Simplify right side
    3,441.20x = 7,937,315.49
  5. Step 5: Solve for x
    x = 7,937,315.49/3,441.20
  6. Step 6: Final answer
    x = 2,306.56

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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.