Home / 5,243.20-7,235.74-3,118.98

Finding the Fourth Proportional to 5,243.20, 7,235.74 and 3,118.98

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Solution

The fourth proportional to 5,243.20, 7,235.74 and 3,118.98 is: 4,304.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.20 : 7,235.74 = 3,118.98 : x
  2. Step 2: Convert to fraction form
    5,243.20/7,235.74 = 3,118.98/x
  3. Step 3: Cross multiply
    5,243.20x = 7,235.74 × 3,118.98
  4. Step 4: Simplify right side
    5,243.20x = 22,568,128.35
  5. Step 5: Solve for x
    x = 22,568,128.35/5,243.20
  6. Step 6: Final answer
    x = 4,304.27

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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.