Home / 5,211.55-7,184.53-3,220.98

Finding the Fourth Proportional to 5,211.55, 7,184.53 and 3,220.98

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Solution

The fourth proportional to 5,211.55, 7,184.53 and 3,220.98 is: 4,440.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.55 : 7,184.53 = 3,220.98 : x
  2. Step 2: Convert to fraction form
    5,211.55/7,184.53 = 3,220.98/x
  3. Step 3: Cross multiply
    5,211.55x = 7,184.53 × 3,220.98
  4. Step 4: Simplify right side
    5,211.55x = 23,141,227.44
  5. Step 5: Solve for x
    x = 23,141,227.44/5,211.55
  6. Step 6: Final answer
    x = 4,440.37

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Half scale
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Double scale
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Similar ratio
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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.