Home / 6,211.60-8,572.20-3,379.18

Finding the Fourth Proportional to 6,211.60, 8,572.20 and 3,379.18

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Solution

The fourth proportional to 6,211.60, 8,572.20 and 3,379.18 is: 4,663.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,211.60 : 8,572.20 = 3,379.18 : x
  2. Step 2: Convert to fraction form
    6,211.60/8,572.20 = 3,379.18/x
  3. Step 3: Cross multiply
    6,211.60x = 8,572.20 × 3,379.18
  4. Step 4: Simplify right side
    6,211.60x = 28,967,006.80
  5. Step 5: Solve for x
    x = 28,967,006.80/6,211.60
  6. Step 6: Final answer
    x = 4,663.37

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Half scale
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Double scale
Find fourth proportional to 6,212.60, 8,573.58 and 3,380.18
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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.