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Finding the Fourth Proportional to 5,190.22, 7,164 and 2,953.30

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Solution

The fourth proportional to 5,190.22, 7,164 and 2,953.30 is: 4,076.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.22 : 7,164 = 2,953.30 : x
  2. Step 2: Convert to fraction form
    5,190.22/7,164 = 2,953.30/x
  3. Step 3: Cross multiply
    5,190.22x = 7,164 × 2,953.30
  4. Step 4: Simplify right side
    5,190.22x = 21,157,441.20
  5. Step 5: Solve for x
    x = 21,157,441.20/5,190.22
  6. Step 6: Final answer
    x = 4,076.41

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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.