Home / 7,581.87-11,372.42-2,904.12

Finding the Fourth Proportional to 7,581.87, 11,372.42 and 2,904.12

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Solution

The fourth proportional to 7,581.87, 11,372.42 and 2,904.12 is: 4,356.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,581.87 : 11,372.42 = 2,904.12 : x
  2. Step 2: Convert to fraction form
    7,581.87/11,372.42 = 2,904.12/x
  3. Step 3: Cross multiply
    7,581.87x = 11,372.42 × 2,904.12
  4. Step 4: Simplify right side
    7,581.87x = 33,026,879.63
  5. Step 5: Solve for x
    x = 33,026,879.63/7,581.87
  6. Step 6: Final answer
    x = 4,356.03

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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.