Home / 3,919.40-5,874.08-2,740.26

Finding the Fourth Proportional to 3,919.40, 5,874.08 and 2,740.26

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Solution

The fourth proportional to 3,919.40, 5,874.08 and 2,740.26 is: 4,106.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.40 : 5,874.08 = 2,740.26 : x
  2. Step 2: Convert to fraction form
    3,919.40/5,874.08 = 2,740.26/x
  3. Step 3: Cross multiply
    3,919.40x = 5,874.08 × 2,740.26
  4. Step 4: Simplify right side
    3,919.40x = 16,096,506.46
  5. Step 5: Solve for x
    x = 16,096,506.46/3,919.40
  6. Step 6: Final answer
    x = 4,106.88

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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.