Home / 5,105.39-7,045.26-3,119.27

Finding the Fourth Proportional to 5,105.39, 7,045.26 and 3,119.27

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Solution

The fourth proportional to 5,105.39, 7,045.26 and 3,119.27 is: 4,304.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,105.39 : 7,045.26 = 3,119.27 : x
  2. Step 2: Convert to fraction form
    5,105.39/7,045.26 = 3,119.27/x
  3. Step 3: Cross multiply
    5,105.39x = 7,045.26 × 3,119.27
  4. Step 4: Simplify right side
    5,105.39x = 21,976,068.16
  5. Step 5: Solve for x
    x = 21,976,068.16/5,105.39
  6. Step 6: Final answer
    x = 4,304.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.