Home / 6,107.35-8,428.13-3,312.85

Finding the Fourth Proportional to 6,107.35, 8,428.13 and 3,312.85

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Solution

The fourth proportional to 6,107.35, 8,428.13 and 3,312.85 is: 4,571.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,107.35 : 8,428.13 = 3,312.85 : x
  2. Step 2: Convert to fraction form
    6,107.35/8,428.13 = 3,312.85/x
  3. Step 3: Cross multiply
    6,107.35x = 8,428.13 × 3,312.85
  4. Step 4: Simplify right side
    6,107.35x = 27,921,130.47
  5. Step 5: Solve for x
    x = 27,921,130.47/6,107.35
  6. Step 6: Final answer
    x = 4,571.73

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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.