Home / 3,519.79-5,282.87-1,877.72

Finding the Fourth Proportional to 3,519.79, 5,282.87 and 1,877.72

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Solution

The fourth proportional to 3,519.79, 5,282.87 and 1,877.72 is: 2,818.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.79 : 5,282.87 = 1,877.72 : x
  2. Step 2: Convert to fraction form
    3,519.79/5,282.87 = 1,877.72/x
  3. Step 3: Cross multiply
    3,519.79x = 5,282.87 × 1,877.72
  4. Step 4: Simplify right side
    3,519.79x = 9,919,714.85
  5. Step 5: Solve for x
    x = 9,919,714.85/3,519.79
  6. Step 6: Final answer
    x = 2,818.27

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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.