Home / 3,720.42-5,136.21-2,543.22

Finding the Fourth Proportional to 3,720.42, 5,136.21 and 2,543.22

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Solution

The fourth proportional to 3,720.42, 5,136.21 and 2,543.22 is: 3,511.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.42 : 5,136.21 = 2,543.22 : x
  2. Step 2: Convert to fraction form
    3,720.42/5,136.21 = 2,543.22/x
  3. Step 3: Cross multiply
    3,720.42x = 5,136.21 × 2,543.22
  4. Step 4: Simplify right side
    3,720.42x = 13,062,512.00
  5. Step 5: Solve for x
    x = 13,062,512.00/3,720.42
  6. Step 6: Final answer
    x = 3,511.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.