Home / 3,119.30-4,304.64-1,722.04

Finding the Fourth Proportional to 3,119.30, 4,304.64 and 1,722.04

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Solution

The fourth proportional to 3,119.30, 4,304.64 and 1,722.04 is: 2,376.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.30 : 4,304.64 = 1,722.04 : x
  2. Step 2: Convert to fraction form
    3,119.30/4,304.64 = 1,722.04/x
  3. Step 3: Cross multiply
    3,119.30x = 4,304.64 × 1,722.04
  4. Step 4: Simplify right side
    3,119.30x = 7,412,762.27
  5. Step 5: Solve for x
    x = 7,412,762.27/3,119.30
  6. Step 6: Final answer
    x = 2,376.42

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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.