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Finding the Fourth Proportional to 5,230, 7,211 and 4,107.44

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Solution

The fourth proportional to 5,230, 7,211 and 4,107.44 is: 5,663.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,230 : 7,211 = 4,107.44 : x
  2. Step 2: Convert to fraction form
    5,230/7,211 = 4,107.44/x
  3. Step 3: Cross multiply
    5,230x = 7,211 × 4,107.44
  4. Step 4: Simplify right side
    5,230x = 29,618,749.84
  5. Step 5: Solve for x
    x = 29,618,749.84/5,230
  6. Step 6: Final answer
    x = 5,663.24

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Double scale
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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.