Home / 5,642.07-8,463.38-2,131.80

Finding the Fourth Proportional to 5,642.07, 8,463.38 and 2,131.80

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Solution

The fourth proportional to 5,642.07, 8,463.38 and 2,131.80 is: 3,197.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,642.07 : 8,463.38 = 2,131.80 : x
  2. Step 2: Convert to fraction form
    5,642.07/8,463.38 = 2,131.80/x
  3. Step 3: Cross multiply
    5,642.07x = 8,463.38 × 2,131.80
  4. Step 4: Simplify right side
    5,642.07x = 18,042,222.83
  5. Step 5: Solve for x
    x = 18,042,222.83/5,642.07
  6. Step 6: Final answer
    x = 3,197.80

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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.