Home / 5,311.18-7,327.95-3,185.38

Finding the Fourth Proportional to 5,311.18, 7,327.95 and 3,185.38

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Solution

The fourth proportional to 5,311.18, 7,327.95 and 3,185.38 is: 4,394.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.18 : 7,327.95 = 3,185.38 : x
  2. Step 2: Convert to fraction form
    5,311.18/7,327.95 = 3,185.38/x
  3. Step 3: Cross multiply
    5,311.18x = 7,327.95 × 3,185.38
  4. Step 4: Simplify right side
    5,311.18x = 23,342,305.37
  5. Step 5: Solve for x
    x = 23,342,305.37/5,311.18
  6. Step 6: Final answer
    x = 4,394.94

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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.