Home / 3,457.21-5,181.72-2,070.85

Finding the Fourth Proportional to 3,457.21, 5,181.72 and 2,070.85

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Solution

The fourth proportional to 3,457.21, 5,181.72 and 2,070.85 is: 3,103.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,457.21 : 5,181.72 = 2,070.85 : x
  2. Step 2: Convert to fraction form
    3,457.21/5,181.72 = 2,070.85/x
  3. Step 3: Cross multiply
    3,457.21x = 5,181.72 × 2,070.85
  4. Step 4: Simplify right side
    3,457.21x = 10,730,564.86
  5. Step 5: Solve for x
    x = 10,730,564.86/3,457.21
  6. Step 6: Final answer
    x = 3,103.82

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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.