Home / 3,744.70-5,617.05-1,279.30

Finding the Fourth Proportional to 3,744.70, 5,617.05 and 1,279.30

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Solution

The fourth proportional to 3,744.70, 5,617.05 and 1,279.30 is: 1,918.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,744.70 : 5,617.05 = 1,279.30 : x
  2. Step 2: Convert to fraction form
    3,744.70/5,617.05 = 1,279.30/x
  3. Step 3: Cross multiply
    3,744.70x = 5,617.05 × 1,279.30
  4. Step 4: Simplify right side
    3,744.70x = 7,185,892.07
  5. Step 5: Solve for x
    x = 7,185,892.07/3,744.70
  6. Step 6: Final answer
    x = 1,918.95

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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.