Home / 3,919.87-5,880.32-2,071.06

Finding the Fourth Proportional to 3,919.87, 5,880.32 and 2,071.06

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Solution

The fourth proportional to 3,919.87, 5,880.32 and 2,071.06 is: 3,106.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.87 : 5,880.32 = 2,071.06 : x
  2. Step 2: Convert to fraction form
    3,919.87/5,880.32 = 2,071.06/x
  3. Step 3: Cross multiply
    3,919.87x = 5,880.32 × 2,071.06
  4. Step 4: Simplify right side
    3,919.87x = 12,178,475.81
  5. Step 5: Solve for x
    x = 12,178,475.81/3,919.87
  6. Step 6: Final answer
    x = 3,106.86

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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.