Home / 3,618.57-5,428.26-1,670.25

Finding the Fourth Proportional to 3,618.57, 5,428.26 and 1,670.25

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Solution

The fourth proportional to 3,618.57, 5,428.26 and 1,670.25 is: 2,505.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.57 : 5,428.26 = 1,670.25 : x
  2. Step 2: Convert to fraction form
    3,618.57/5,428.26 = 1,670.25/x
  3. Step 3: Cross multiply
    3,618.57x = 5,428.26 × 1,670.25
  4. Step 4: Simplify right side
    3,618.57x = 9,066,551.27
  5. Step 5: Solve for x
    x = 9,066,551.27/3,618.57
  6. Step 6: Final answer
    x = 2,505.56

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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.