Home / 5,423.16-8,134.74-2,136.60

Finding the Fourth Proportional to 5,423.16, 8,134.74 and 2,136.60

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Solution

The fourth proportional to 5,423.16, 8,134.74 and 2,136.60 is: 3,204.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423.16 : 8,134.74 = 2,136.60 : x
  2. Step 2: Convert to fraction form
    5,423.16/8,134.74 = 2,136.60/x
  3. Step 3: Cross multiply
    5,423.16x = 8,134.74 × 2,136.60
  4. Step 4: Simplify right side
    5,423.16x = 17,380,685.48
  5. Step 5: Solve for x
    x = 17,380,685.48/5,423.16
  6. Step 6: Final answer
    x = 3,204.90

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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.