Home / 5,431.86-8,144.96-2,512.22

Finding the Fourth Proportional to 5,431.86, 8,144.96 and 2,512.22

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Solution

The fourth proportional to 5,431.86, 8,144.96 and 2,512.22 is: 3,767.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.86 : 8,144.96 = 2,512.22 : x
  2. Step 2: Convert to fraction form
    5,431.86/8,144.96 = 2,512.22/x
  3. Step 3: Cross multiply
    5,431.86x = 8,144.96 × 2,512.22
  4. Step 4: Simplify right side
    5,431.86x = 20,461,878.13
  5. Step 5: Solve for x
    x = 20,461,878.13/5,431.86
  6. Step 6: Final answer
    x = 3,767.01

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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.