Home / 5,421.96-8,132.94-2,136.60

Finding the Fourth Proportional to 5,421.96, 8,132.94 and 2,136.60

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Solution

The fourth proportional to 5,421.96, 8,132.94 and 2,136.60 is: 3,204.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.96 : 8,132.94 = 2,136.60 : x
  2. Step 2: Convert to fraction form
    5,421.96/8,132.94 = 2,136.60/x
  3. Step 3: Cross multiply
    5,421.96x = 8,132.94 × 2,136.60
  4. Step 4: Simplify right side
    5,421.96x = 17,376,839.60
  5. Step 5: Solve for x
    x = 17,376,839.60/5,421.96
  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.