Home / 6,136.10-8,469.45-3,780.21

Finding the Fourth Proportional to 6,136.10, 8,469.45 and 3,780.21

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Solution

The fourth proportional to 6,136.10, 8,469.45 and 3,780.21 is: 5,217.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,136.10 : 8,469.45 = 3,780.21 : x
  2. Step 2: Convert to fraction form
    6,136.10/8,469.45 = 3,780.21/x
  3. Step 3: Cross multiply
    6,136.10x = 8,469.45 × 3,780.21
  4. Step 4: Simplify right side
    6,136.10x = 32,016,299.58
  5. Step 5: Solve for x
    x = 32,016,299.58/6,136.10
  6. Step 6: Final answer
    x = 5,217.70

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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.