Home / 6,107.36-8,428.19-3,312.86

Finding the Fourth Proportional to 6,107.36, 8,428.19 and 3,312.86

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Solution

The fourth proportional to 6,107.36, 8,428.19 and 3,312.86 is: 4,571.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,107.36 : 8,428.19 = 3,312.86 : x
  2. Step 2: Convert to fraction form
    6,107.36/8,428.19 = 3,312.86/x
  3. Step 3: Cross multiply
    6,107.36x = 8,428.19 × 3,312.86
  4. Step 4: Simplify right side
    6,107.36x = 27,921,354.82
  5. Step 5: Solve for x
    x = 27,921,354.82/6,107.36
  6. Step 6: Final answer
    x = 4,571.76

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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.