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Finding the Fourth Proportional to 4,123.64, 5,690.86 and 2,355.62

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Solution

The fourth proportional to 4,123.64, 5,690.86 and 2,355.62 is: 3,250.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,123.64 : 5,690.86 = 2,355.62 : x
  2. Step 2: Convert to fraction form
    4,123.64/5,690.86 = 2,355.62/x
  3. Step 3: Cross multiply
    4,123.64x = 5,690.86 × 2,355.62
  4. Step 4: Simplify right side
    4,123.64x = 13,405,469.29
  5. Step 5: Solve for x
    x = 13,405,469.29/4,123.64
  6. Step 6: Final answer
    x = 3,250.88

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.