Home / 3,519.57-5,279.25-1,438.99

Finding the Fourth Proportional to 3,519.57, 5,279.25 and 1,438.99

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Solution

The fourth proportional to 3,519.57, 5,279.25 and 1,438.99 is: 2,158.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.57 : 5,279.25 = 1,438.99 : x
  2. Step 2: Convert to fraction form
    3,519.57/5,279.25 = 1,438.99/x
  3. Step 3: Cross multiply
    3,519.57x = 5,279.25 × 1,438.99
  4. Step 4: Simplify right side
    3,519.57x = 7,596,780.16
  5. Step 5: Solve for x
    x = 7,596,780.16/3,519.57
  6. Step 6: Final answer
    x = 2,158.44

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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.