Home / 3,515.86-5,274.62-1,872.06

Finding the Fourth Proportional to 3,515.86, 5,274.62 and 1,872.06

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Solution

The fourth proportional to 3,515.86, 5,274.62 and 1,872.06 is: 2,808.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.86 : 5,274.62 = 1,872.06 : x
  2. Step 2: Convert to fraction form
    3,515.86/5,274.62 = 1,872.06/x
  3. Step 3: Cross multiply
    3,515.86x = 5,274.62 × 1,872.06
  4. Step 4: Simplify right side
    3,515.86x = 9,874,412.67
  5. Step 5: Solve for x
    x = 9,874,412.67/3,515.86
  6. Step 6: Final answer
    x = 2,808.54

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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.