Home / 5,379.18-7,422.48-3,020.87

Finding the Fourth Proportional to 5,379.18, 7,422.48 and 3,020.87

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Solution

The fourth proportional to 5,379.18, 7,422.48 and 3,020.87 is: 4,168.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.18 : 7,422.48 = 3,020.87 : x
  2. Step 2: Convert to fraction form
    5,379.18/7,422.48 = 3,020.87/x
  3. Step 3: Cross multiply
    5,379.18x = 7,422.48 × 3,020.87
  4. Step 4: Simplify right side
    5,379.18x = 22,422,310.05
  5. Step 5: Solve for x
    x = 22,422,310.05/5,379.18
  6. Step 6: Final answer
    x = 4,168.35

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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.