Home / 3,423.30-5,136.21-1,114.80

Finding the Fourth Proportional to 3,423.30, 5,136.21 and 1,114.80

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Solution

The fourth proportional to 3,423.30, 5,136.21 and 1,114.80 is: 1,672.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.30 : 5,136.21 = 1,114.80 : x
  2. Step 2: Convert to fraction form
    3,423.30/5,136.21 = 1,114.80/x
  3. Step 3: Cross multiply
    3,423.30x = 5,136.21 × 1,114.80
  4. Step 4: Simplify right side
    3,423.30x = 5,725,846.91
  5. Step 5: Solve for x
    x = 5,725,846.91/3,423.30
  6. Step 6: Final answer
    x = 1,672.61

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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.