Home / 4,578.32-6,863.88-2,111.60

Finding the Fourth Proportional to 4,578.32, 6,863.88 and 2,111.60

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Solution

The fourth proportional to 4,578.32, 6,863.88 and 2,111.60 is: 3,165.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,578.32 : 6,863.88 = 2,111.60 : x
  2. Step 2: Convert to fraction form
    4,578.32/6,863.88 = 2,111.60/x
  3. Step 3: Cross multiply
    4,578.32x = 6,863.88 × 2,111.60
  4. Step 4: Simplify right side
    4,578.32x = 14,493,769.01
  5. Step 5: Solve for x
    x = 14,493,769.01/4,578.32
  6. Step 6: Final answer
    x = 3,165.74

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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.