Home / 5,540.67-7,643.84-3,863.07

Finding the Fourth Proportional to 5,540.67, 7,643.84 and 3,863.07

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Solution

The fourth proportional to 5,540.67, 7,643.84 and 3,863.07 is: 5,329.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,540.67 : 7,643.84 = 3,863.07 : x
  2. Step 2: Convert to fraction form
    5,540.67/7,643.84 = 3,863.07/x
  3. Step 3: Cross multiply
    5,540.67x = 7,643.84 × 3,863.07
  4. Step 4: Simplify right side
    5,540.67x = 29,528,669.67
  5. Step 5: Solve for x
    x = 29,528,669.67/5,540.67
  6. Step 6: Final answer
    x = 5,329.44

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1.5x scale

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.