Home / 2,515.88-3,768.32-1,539.02

Finding the Fourth Proportional to 2,515.88, 3,768.32 and 1,539.02

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Solution

The fourth proportional to 2,515.88, 3,768.32 and 1,539.02 is: 2,305.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.88 : 3,768.32 = 1,539.02 : x
  2. Step 2: Convert to fraction form
    2,515.88/3,768.32 = 1,539.02/x
  3. Step 3: Cross multiply
    2,515.88x = 3,768.32 × 1,539.02
  4. Step 4: Simplify right side
    2,515.88x = 5,799,519.85
  5. Step 5: Solve for x
    x = 5,799,519.85/2,515.88
  6. Step 6: Final answer
    x = 2,305.17

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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.