Home / 6,419.82-8,858.48-3,586.85

Finding the Fourth Proportional to 6,419.82, 8,858.48 and 3,586.85

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Solution

The fourth proportional to 6,419.82, 8,858.48 and 3,586.85 is: 4,949.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,419.82 : 8,858.48 = 3,586.85 : x
  2. Step 2: Convert to fraction form
    6,419.82/8,858.48 = 3,586.85/x
  3. Step 3: Cross multiply
    6,419.82x = 8,858.48 × 3,586.85
  4. Step 4: Simplify right side
    6,419.82x = 31,773,976.76
  5. Step 5: Solve for x
    x = 31,773,976.76/6,419.82
  6. Step 6: Final answer
    x = 4,949.36

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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.