Home / 6,211.80-8,572.32-3,379.21

Finding the Fourth Proportional to 6,211.80, 8,572.32 and 3,379.21

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Solution

The fourth proportional to 6,211.80, 8,572.32 and 3,379.21 is: 4,663.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,211.80 : 8,572.32 = 3,379.21 : x
  2. Step 2: Convert to fraction form
    6,211.80/8,572.32 = 3,379.21/x
  3. Step 3: Cross multiply
    6,211.80x = 8,572.32 × 3,379.21
  4. Step 4: Simplify right side
    6,211.80x = 28,967,669.47
  5. Step 5: Solve for x
    x = 28,967,669.47/6,211.80
  6. Step 6: Final answer
    x = 4,663.33

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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.