Home / 6,386.70-8,813.43-3,591.66

Finding the Fourth Proportional to 6,386.70, 8,813.43 and 3,591.66

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Solution

The fourth proportional to 6,386.70, 8,813.43 and 3,591.66 is: 4,956.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,386.70 : 8,813.43 = 3,591.66 : x
  2. Step 2: Convert to fraction form
    6,386.70/8,813.43 = 3,591.66/x
  3. Step 3: Cross multiply
    6,386.70x = 8,813.43 × 3,591.66
  4. Step 4: Simplify right side
    6,386.70x = 31,654,843.99
  5. Step 5: Solve for x
    x = 31,654,843.99/6,386.70
  6. Step 6: Final answer
    x = 4,956.37

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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.