Home / 5,618.18-8,428.94-1,669.57

Finding the Fourth Proportional to 5,618.18, 8,428.94 and 1,669.57

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Solution

The fourth proportional to 5,618.18, 8,428.94 and 1,669.57 is: 2,504.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.18 : 8,428.94 = 1,669.57 : x
  2. Step 2: Convert to fraction form
    5,618.18/8,428.94 = 1,669.57/x
  3. Step 3: Cross multiply
    5,618.18x = 8,428.94 × 1,669.57
  4. Step 4: Simplify right side
    5,618.18x = 14,072,691.59
  5. Step 5: Solve for x
    x = 14,072,691.59/5,618.18
  6. Step 6: Final answer
    x = 2,504.85

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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.