Home / 5,618.33-8,428.79-1,669.50

Finding the Fourth Proportional to 5,618.33, 8,428.79 and 1,669.50

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Solution

The fourth proportional to 5,618.33, 8,428.79 and 1,669.50 is: 2,504.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.33 : 8,428.79 = 1,669.50 : x
  2. Step 2: Convert to fraction form
    5,618.33/8,428.79 = 1,669.50/x
  3. Step 3: Cross multiply
    5,618.33x = 8,428.79 × 1,669.50
  4. Step 4: Simplify right side
    5,618.33x = 14,071,856.56
  5. Step 5: Solve for x
    x = 14,071,856.56/5,618.33
  6. Step 6: Final answer
    x = 2,504.64

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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.