Home / 6,128.11-8,457.21-3,475.69

Finding the Fourth Proportional to 6,128.11, 8,457.21 and 3,475.69

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Solution

The fourth proportional to 6,128.11, 8,457.21 and 3,475.69 is: 4,796.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128.11 : 8,457.21 = 3,475.69 : x
  2. Step 2: Convert to fraction form
    6,128.11/8,457.21 = 3,475.69/x
  3. Step 3: Cross multiply
    6,128.11x = 8,457.21 × 3,475.69
  4. Step 4: Simplify right side
    6,128.11x = 29,394,634.94
  5. Step 5: Solve for x
    x = 29,394,634.94/6,128.11
  6. Step 6: Final answer
    x = 4,796.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.