Home / 7,564.72-11,345.40-3,181.04

Finding the Fourth Proportional to 7,564.72, 11,345.40 and 3,181.04

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Solution

The fourth proportional to 7,564.72, 11,345.40 and 3,181.04 is: 4,770.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,564.72 : 11,345.40 = 3,181.04 : x
  2. Step 2: Convert to fraction form
    7,564.72/11,345.40 = 3,181.04/x
  3. Step 3: Cross multiply
    7,564.72x = 11,345.40 × 3,181.04
  4. Step 4: Simplify right side
    7,564.72x = 36,090,171.22
  5. Step 5: Solve for x
    x = 36,090,171.22/7,564.72
  6. Step 6: Final answer
    x = 4,770.85

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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.