Home / 4,578.89-6,863.54-2,115.32

Finding the Fourth Proportional to 4,578.89, 6,863.54 and 2,115.32

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Solution

The fourth proportional to 4,578.89, 6,863.54 and 2,115.32 is: 3,170.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,578.89 : 6,863.54 = 2,115.32 : x
  2. Step 2: Convert to fraction form
    4,578.89/6,863.54 = 2,115.32/x
  3. Step 3: Cross multiply
    4,578.89x = 6,863.54 × 2,115.32
  4. Step 4: Simplify right side
    4,578.89x = 14,518,555.70
  5. Step 5: Solve for x
    x = 14,518,555.70/4,578.89
  6. Step 6: Final answer
    x = 3,170.76

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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.