Home / 3,108.92-4,655.41-1,720.71

Finding the Fourth Proportional to 3,108.92, 4,655.41 and 1,720.71

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Solution

The fourth proportional to 3,108.92, 4,655.41 and 1,720.71 is: 2,576.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.92 : 4,655.41 = 1,720.71 : x
  2. Step 2: Convert to fraction form
    3,108.92/4,655.41 = 1,720.71/x
  3. Step 3: Cross multiply
    3,108.92x = 4,655.41 × 1,720.71
  4. Step 4: Simplify right side
    3,108.92x = 8,010,606.24
  5. Step 5: Solve for x
    x = 8,010,606.24/3,108.92
  6. Step 6: Final answer
    x = 2,576.66

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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.