Home / 3,618.38-5,428.38-1,153.34

Finding the Fourth Proportional to 3,618.38, 5,428.38 and 1,153.34

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Solution

The fourth proportional to 3,618.38, 5,428.38 and 1,153.34 is: 1,730.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.38 : 5,428.38 = 1,153.34 : x
  2. Step 2: Convert to fraction form
    3,618.38/5,428.38 = 1,153.34/x
  3. Step 3: Cross multiply
    3,618.38x = 5,428.38 × 1,153.34
  4. Step 4: Simplify right side
    3,618.38x = 6,260,767.79
  5. Step 5: Solve for x
    x = 6,260,767.79/3,618.38
  6. Step 6: Final answer
    x = 1,730.27

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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.