Home / 6,860.70-9,467.15-3,876.80

Finding the Fourth Proportional to 6,860.70, 9,467.15 and 3,876.80

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Solution

The fourth proportional to 6,860.70, 9,467.15 and 3,876.80 is: 5,349.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,860.70 : 9,467.15 = 3,876.80 : x
  2. Step 2: Convert to fraction form
    6,860.70/9,467.15 = 3,876.80/x
  3. Step 3: Cross multiply
    6,860.70x = 9,467.15 × 3,876.80
  4. Step 4: Simplify right side
    6,860.70x = 36,702,180.40
  5. Step 5: Solve for x
    x = 36,702,180.40/6,860.70
  6. Step 6: Final answer
    x = 5,349.63

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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.