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Finding the Fourth Proportional to 5,150.97, 7,105.50 and 3,160.80

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Solution

The fourth proportional to 5,150.97, 7,105.50 and 3,160.80 is: 4,360.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,150.97 : 7,105.50 = 3,160.80 : x
  2. Step 2: Convert to fraction form
    5,150.97/7,105.50 = 3,160.80/x
  3. Step 3: Cross multiply
    5,150.97x = 7,105.50 × 3,160.80
  4. Step 4: Simplify right side
    5,150.97x = 22,459,064.40
  5. Step 5: Solve for x
    x = 22,459,064.40/5,150.97
  6. Step 6: Final answer
    x = 4,360.16

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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.