Home / 3,519.21-5,281.17-1,876.89

Finding the Fourth Proportional to 3,519.21, 5,281.17 and 1,876.89

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Solution

The fourth proportional to 3,519.21, 5,281.17 and 1,876.89 is: 2,816.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.21 : 5,281.17 = 1,876.89 : x
  2. Step 2: Convert to fraction form
    3,519.21/5,281.17 = 1,876.89/x
  3. Step 3: Cross multiply
    3,519.21x = 5,281.17 × 1,876.89
  4. Step 4: Simplify right side
    3,519.21x = 9,912,175.16
  5. Step 5: Solve for x
    x = 9,912,175.16/3,519.21
  6. Step 6: Final answer
    x = 2,816.59

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1.5x scale

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.