Home / 4,136.10-6,209.55-3,315.30

Finding the Fourth Proportional to 4,136.10, 6,209.55 and 3,315.30

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Solution

The fourth proportional to 4,136.10, 6,209.55 and 3,315.30 is: 4,977.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,136.10 : 6,209.55 = 3,315.30 : x
  2. Step 2: Convert to fraction form
    4,136.10/6,209.55 = 3,315.30/x
  3. Step 3: Cross multiply
    4,136.10x = 6,209.55 × 3,315.30
  4. Step 4: Simplify right side
    4,136.10x = 20,586,521.12
  5. Step 5: Solve for x
    x = 20,586,521.12/4,136.10
  6. Step 6: Final answer
    x = 4,977.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.