Home / 4,742.87-6,545.49-2,647

Finding the Fourth Proportional to 4,742.87, 6,545.49 and 2,647

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Solution

The fourth proportional to 4,742.87, 6,545.49 and 2,647 is: 3,653.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,742.87 : 6,545.49 = 2,647 : x
  2. Step 2: Convert to fraction form
    4,742.87/6,545.49 = 2,647/x
  3. Step 3: Cross multiply
    4,742.87x = 6,545.49 × 2,647
  4. Step 4: Simplify right side
    4,742.87x = 17,325,912.03
  5. Step 5: Solve for x
    x = 17,325,912.03/4,742.87
  6. Step 6: Final answer
    x = 3,653.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.