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Finding the Fourth Proportional to 3,133.25, 4,700.60 and 1,081.25

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Solution

The fourth proportional to 3,133.25, 4,700.60 and 1,081.25 is: 1,622.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,133.25 : 4,700.60 = 1,081.25 : x
  2. Step 2: Convert to fraction form
    3,133.25/4,700.60 = 1,081.25/x
  3. Step 3: Cross multiply
    3,133.25x = 4,700.60 × 1,081.25
  4. Step 4: Simplify right side
    3,133.25x = 5,082,518.34
  5. Step 5: Solve for x
    x = 5,082,518.34/3,133.25
  6. Step 6: Final answer
    x = 1,622.12

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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.