Home / 4,812.72-6,640.70-2,716.86

Finding the Fourth Proportional to 4,812.72, 6,640.70 and 2,716.86

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Solution

The fourth proportional to 4,812.72, 6,640.70 and 2,716.86 is: 3,748.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,812.72 : 6,640.70 = 2,716.86 : x
  2. Step 2: Convert to fraction form
    4,812.72/6,640.70 = 2,716.86/x
  3. Step 3: Cross multiply
    4,812.72x = 6,640.70 × 2,716.86
  4. Step 4: Simplify right side
    4,812.72x = 18,041,852.20
  5. Step 5: Solve for x
    x = 18,041,852.20/4,812.72
  6. Step 6: Final answer
    x = 3,748.78

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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.