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Finding the Fourth Proportional to 2,359.96, 3,538.44 and 899.20

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Solution

The fourth proportional to 2,359.96, 3,538.44 and 899.20 is: 1,348.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,359.96 : 3,538.44 = 899.20 : x
  2. Step 2: Convert to fraction form
    2,359.96/3,538.44 = 899.20/x
  3. Step 3: Cross multiply
    2,359.96x = 3,538.44 × 899.20
  4. Step 4: Simplify right side
    2,359.96x = 3,181,765.25
  5. Step 5: Solve for x
    x = 3,181,765.25/2,359.96
  6. Step 6: Final answer
    x = 1,348.23

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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.