Home / 5,540.81-7,643.94-3,182.45

Finding the Fourth Proportional to 5,540.81, 7,643.94 and 3,182.45

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Solution

The fourth proportional to 5,540.81, 7,643.94 and 3,182.45 is: 4,390.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,540.81 : 7,643.94 = 3,182.45 : x
  2. Step 2: Convert to fraction form
    5,540.81/7,643.94 = 3,182.45/x
  3. Step 3: Cross multiply
    5,540.81x = 7,643.94 × 3,182.45
  4. Step 4: Simplify right side
    5,540.81x = 24,326,456.85
  5. Step 5: Solve for x
    x = 24,326,456.85/5,540.81
  6. Step 6: Final answer
    x = 4,390.42

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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.