Home / 5,211.14-7,192.64-3,220.50

Finding the Fourth Proportional to 5,211.14, 7,192.64 and 3,220.50

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Solution

The fourth proportional to 5,211.14, 7,192.64 and 3,220.50 is: 4,445.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.14 : 7,192.64 = 3,220.50 : x
  2. Step 2: Convert to fraction form
    5,211.14/7,192.64 = 3,220.50/x
  3. Step 3: Cross multiply
    5,211.14x = 7,192.64 × 3,220.50
  4. Step 4: Simplify right side
    5,211.14x = 23,163,905.17
  5. Step 5: Solve for x
    x = 23,163,905.17/5,211.14
  6. Step 6: Final answer
    x = 4,445.07

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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.