Home / 5,379.21-7,422.06-3,255.12

Finding the Fourth Proportional to 5,379.21, 7,422.06 and 3,255.12

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Solution

The fourth proportional to 5,379.21, 7,422.06 and 3,255.12 is: 4,491.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.21 : 7,422.06 = 3,255.12 : x
  2. Step 2: Convert to fraction form
    5,379.21/7,422.06 = 3,255.12/x
  3. Step 3: Cross multiply
    5,379.21x = 7,422.06 × 3,255.12
  4. Step 4: Simplify right side
    5,379.21x = 24,159,695.95
  5. Step 5: Solve for x
    x = 24,159,695.95/5,379.21
  6. Step 6: Final answer
    x = 4,491.31

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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.