Home / 3,471.45-5,207.52-1,279.67

Finding the Fourth Proportional to 3,471.45, 5,207.52 and 1,279.67

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Solution

The fourth proportional to 3,471.45, 5,207.52 and 1,279.67 is: 1,919.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,471.45 : 5,207.52 = 1,279.67 : x
  2. Step 2: Convert to fraction form
    3,471.45/5,207.52 = 1,279.67/x
  3. Step 3: Cross multiply
    3,471.45x = 5,207.52 × 1,279.67
  4. Step 4: Simplify right side
    3,471.45x = 6,663,907.12
  5. Step 5: Solve for x
    x = 6,663,907.12/3,471.45
  6. Step 6: Final answer
    x = 1,919.63

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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.