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Finding the Fourth Proportional to 2,402.56, 3,607.80 and 1,817.60

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Solution

The fourth proportional to 2,402.56, 3,607.80 and 1,817.60 is: 2,729.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,402.56 : 3,607.80 = 1,817.60 : x
  2. Step 2: Convert to fraction form
    2,402.56/3,607.80 = 1,817.60/x
  3. Step 3: Cross multiply
    2,402.56x = 3,607.80 × 1,817.60
  4. Step 4: Simplify right side
    2,402.56x = 6,557,537.28
  5. Step 5: Solve for x
    x = 6,557,537.28/2,402.56
  6. Step 6: Final answer
    x = 2,729.40

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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.