Home / 3,450.33-5,175.45-985.14

Finding the Fourth Proportional to 3,450.33, 5,175.45 and 985.14

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Solution

The fourth proportional to 3,450.33, 5,175.45 and 985.14 is: 1,477.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,450.33 : 5,175.45 = 985.14 : x
  2. Step 2: Convert to fraction form
    3,450.33/5,175.45 = 985.14/x
  3. Step 3: Cross multiply
    3,450.33x = 5,175.45 × 985.14
  4. Step 4: Simplify right side
    3,450.33x = 5,098,542.81
  5. Step 5: Solve for x
    x = 5,098,542.81/3,450.33
  6. Step 6: Final answer
    x = 1,477.70

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1.5x scale

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.