Home / 5,102.36-7,654.68-1,815.44

Finding the Fourth Proportional to 5,102.36, 7,654.68 and 1,815.44

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Solution

The fourth proportional to 5,102.36, 7,654.68 and 1,815.44 is: 2,723.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,102.36 : 7,654.68 = 1,815.44 : x
  2. Step 2: Convert to fraction form
    5,102.36/7,654.68 = 1,815.44/x
  3. Step 3: Cross multiply
    5,102.36x = 7,654.68 × 1,815.44
  4. Step 4: Simplify right side
    5,102.36x = 13,896,612.26
  5. Step 5: Solve for x
    x = 13,896,612.26/5,102.36
  6. Step 6: Final answer
    x = 2,723.57

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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.