Home / 3,614.60-5,421.90-2,136.20

Finding the Fourth Proportional to 3,614.60, 5,421.90 and 2,136.20

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Solution

The fourth proportional to 3,614.60, 5,421.90 and 2,136.20 is: 3,204.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,614.60 : 5,421.90 = 2,136.20 : x
  2. Step 2: Convert to fraction form
    3,614.60/5,421.90 = 2,136.20/x
  3. Step 3: Cross multiply
    3,614.60x = 5,421.90 × 2,136.20
  4. Step 4: Simplify right side
    3,614.60x = 11,582,262.78
  5. Step 5: Solve for x
    x = 11,582,262.78/3,614.60
  6. Step 6: Final answer
    x = 3,204.30

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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.