Home / 3,744.63-5,616.94-1,279.47

Finding the Fourth Proportional to 3,744.63, 5,616.94 and 1,279.47

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Solution

The fourth proportional to 3,744.63, 5,616.94 and 1,279.47 is: 1,919.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,744.63 : 5,616.94 = 1,279.47 : x
  2. Step 2: Convert to fraction form
    3,744.63/5,616.94 = 1,279.47/x
  3. Step 3: Cross multiply
    3,744.63x = 5,616.94 × 1,279.47
  4. Step 4: Simplify right side
    3,744.63x = 7,186,707.82
  5. Step 5: Solve for x
    x = 7,186,707.82/3,744.63
  6. Step 6: Final answer
    x = 1,919.21

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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.