Home / 4,391.53-6,589.89-1,620.15

Finding the Fourth Proportional to 4,391.53, 6,589.89 and 1,620.15

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Solution

The fourth proportional to 4,391.53, 6,589.89 and 1,620.15 is: 2,431.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,391.53 : 6,589.89 = 1,620.15 : x
  2. Step 2: Convert to fraction form
    4,391.53/6,589.89 = 1,620.15/x
  3. Step 3: Cross multiply
    4,391.53x = 6,589.89 × 1,620.15
  4. Step 4: Simplify right side
    4,391.53x = 10,676,610.28
  5. Step 5: Solve for x
    x = 10,676,610.28/4,391.53
  6. Step 6: Final answer
    x = 2,431.18

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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.