Home / 7,618.33-11,429.21-2,688.01

Finding the Fourth Proportional to 7,618.33, 11,429.21 and 2,688.01

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Solution

The fourth proportional to 7,618.33, 11,429.21 and 2,688.01 is: 4,032.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,618.33 : 11,429.21 = 2,688.01 : x
  2. Step 2: Convert to fraction form
    7,618.33/11,429.21 = 2,688.01/x
  3. Step 3: Cross multiply
    7,618.33x = 11,429.21 × 2,688.01
  4. Step 4: Simplify right side
    7,618.33x = 30,721,845.91
  5. Step 5: Solve for x
    x = 30,721,845.91/7,618.33
  6. Step 6: Final answer
    x = 4,032.62

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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.