Home / 3,919.40-5,880.45-1,727.81

Finding the Fourth Proportional to 3,919.40, 5,880.45 and 1,727.81

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Solution

The fourth proportional to 3,919.40, 5,880.45 and 1,727.81 is: 2,592.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.40 : 5,880.45 = 1,727.81 : x
  2. Step 2: Convert to fraction form
    3,919.40/5,880.45 = 1,727.81/x
  3. Step 3: Cross multiply
    3,919.40x = 5,880.45 × 1,727.81
  4. Step 4: Simplify right side
    3,919.40x = 10,160,300.31
  5. Step 5: Solve for x
    x = 10,160,300.31/3,919.40
  6. Step 6: Final answer
    x = 2,592.31

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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.