Home / 3,519.56-4,857.10-2,121.50

Finding the Fourth Proportional to 3,519.56, 4,857.10 and 2,121.50

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Solution

The fourth proportional to 3,519.56, 4,857.10 and 2,121.50 is: 2,927.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.56 : 4,857.10 = 2,121.50 : x
  2. Step 2: Convert to fraction form
    3,519.56/4,857.10 = 2,121.50/x
  3. Step 3: Cross multiply
    3,519.56x = 4,857.10 × 2,121.50
  4. Step 4: Simplify right side
    3,519.56x = 10,304,337.65
  5. Step 5: Solve for x
    x = 10,304,337.65/3,519.56
  6. Step 6: Final answer
    x = 2,927.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.