Home / 5,379.55-7,421.97-3,021.19

Finding the Fourth Proportional to 5,379.55, 7,421.97 and 3,021.19

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Solution

The fourth proportional to 5,379.55, 7,421.97 and 3,021.19 is: 4,168.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.55 : 7,421.97 = 3,021.19 : x
  2. Step 2: Convert to fraction form
    5,379.55/7,421.97 = 3,021.19/x
  3. Step 3: Cross multiply
    5,379.55x = 7,421.97 × 3,021.19
  4. Step 4: Simplify right side
    5,379.55x = 22,423,181.54
  5. Step 5: Solve for x
    x = 22,423,181.54/5,379.55
  6. Step 6: Final answer
    x = 4,168.23

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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.