Home / 6,143.82-8,479.36-3,491.48

Finding the Fourth Proportional to 6,143.82, 8,479.36 and 3,491.48

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Solution

The fourth proportional to 6,143.82, 8,479.36 and 3,491.48 is: 4,818.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,143.82 : 8,479.36 = 3,491.48 : x
  2. Step 2: Convert to fraction form
    6,143.82/8,479.36 = 3,491.48/x
  3. Step 3: Cross multiply
    6,143.82x = 8,479.36 × 3,491.48
  4. Step 4: Simplify right side
    6,143.82x = 29,605,515.85
  5. Step 5: Solve for x
    x = 29,605,515.85/6,143.82
  6. Step 6: Final answer
    x = 4,818.75

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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.