Home / 3,119.36-4,304.82-1,722.14

Finding the Fourth Proportional to 3,119.36, 4,304.82 and 1,722.14

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Solution

The fourth proportional to 3,119.36, 4,304.82 and 1,722.14 is: 2,376.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.36 : 4,304.82 = 1,722.14 : x
  2. Step 2: Convert to fraction form
    3,119.36/4,304.82 = 1,722.14/x
  3. Step 3: Cross multiply
    3,119.36x = 4,304.82 × 1,722.14
  4. Step 4: Simplify right side
    3,119.36x = 7,413,502.71
  5. Step 5: Solve for x
    x = 7,413,502.71/3,119.36
  6. Step 6: Final answer
    x = 2,376.61

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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.