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Finding the Fourth Proportional to 3,653.31, 5,471.76 and 2,829.09

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Solution

The fourth proportional to 3,653.31, 5,471.76 and 2,829.09 is: 4,237.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,653.31 : 5,471.76 = 2,829.09 : x
  2. Step 2: Convert to fraction form
    3,653.31/5,471.76 = 2,829.09/x
  3. Step 3: Cross multiply
    3,653.31x = 5,471.76 × 2,829.09
  4. Step 4: Simplify right side
    3,653.31x = 15,480,101.50
  5. Step 5: Solve for x
    x = 15,480,101.50/3,653.31
  6. Step 6: Final answer
    x = 4,237.28

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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.