Home / 6,211.90-8,572.49-3,379.29

Finding the Fourth Proportional to 6,211.90, 8,572.49 and 3,379.29

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Solution

The fourth proportional to 6,211.90, 8,572.49 and 3,379.29 is: 4,663.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,211.90 : 8,572.49 = 3,379.29 : x
  2. Step 2: Convert to fraction form
    6,211.90/8,572.49 = 3,379.29/x
  3. Step 3: Cross multiply
    6,211.90x = 8,572.49 × 3,379.29
  4. Step 4: Simplify right side
    6,211.90x = 28,968,929.73
  5. Step 5: Solve for x
    x = 28,968,929.73/6,211.90
  6. Step 6: Final answer
    x = 4,663.46

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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.