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Finding the Fourth Proportional to 3,536.70, 5,305.05 and 2,910.30

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Solution

The fourth proportional to 3,536.70, 5,305.05 and 2,910.30 is: 4,365.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,536.70 : 5,305.05 = 2,910.30 : x
  2. Step 2: Convert to fraction form
    3,536.70/5,305.05 = 2,910.30/x
  3. Step 3: Cross multiply
    3,536.70x = 5,305.05 × 2,910.30
  4. Step 4: Simplify right side
    3,536.70x = 15,439,287.02
  5. Step 5: Solve for x
    x = 15,439,287.02/3,536.70
  6. Step 6: Final answer
    x = 4,365.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.