Home / 3,161.22-4,720.86-3,126.89

Finding the Fourth Proportional to 3,161.22, 4,720.86 and 3,126.89

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Solution

The fourth proportional to 3,161.22, 4,720.86 and 3,126.89 is: 4,669.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.22 : 4,720.86 = 3,126.89 : x
  2. Step 2: Convert to fraction form
    3,161.22/4,720.86 = 3,126.89/x
  3. Step 3: Cross multiply
    3,161.22x = 4,720.86 × 3,126.89
  4. Step 4: Simplify right side
    3,161.22x = 14,761,609.93
  5. Step 5: Solve for x
    x = 14,761,609.93/3,161.22
  6. Step 6: Final answer
    x = 4,669.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.