Home / 7,640.06-11,455.99-2,372.81

Finding the Fourth Proportional to 7,640.06, 11,455.99 and 2,372.81

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Solution

The fourth proportional to 7,640.06, 11,455.99 and 2,372.81 is: 3,557.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,640.06 : 11,455.99 = 2,372.81 : x
  2. Step 2: Convert to fraction form
    7,640.06/11,455.99 = 2,372.81/x
  3. Step 3: Cross multiply
    7,640.06x = 11,455.99 × 2,372.81
  4. Step 4: Simplify right side
    7,640.06x = 27,182,824.42
  5. Step 5: Solve for x
    x = 27,182,824.42/7,640.06
  6. Step 6: Final answer
    x = 3,557.94

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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.