Home / 4,917.32-6,785.91-2,679.21

Finding the Fourth Proportional to 4,917.32, 6,785.91 and 2,679.21

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Solution

The fourth proportional to 4,917.32, 6,785.91 and 2,679.21 is: 3,697.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,917.32 : 6,785.91 = 2,679.21 : x
  2. Step 2: Convert to fraction form
    4,917.32/6,785.91 = 2,679.21/x
  3. Step 3: Cross multiply
    4,917.32x = 6,785.91 × 2,679.21
  4. Step 4: Simplify right side
    4,917.32x = 18,180,857.97
  5. Step 5: Solve for x
    x = 18,180,857.97/4,917.32
  6. Step 6: Final answer
    x = 3,697.31

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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.