Home / 4,811.79-6,640.82-2,715.75

Finding the Fourth Proportional to 4,811.79, 6,640.82 and 2,715.75

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Solution

The fourth proportional to 4,811.79, 6,640.82 and 2,715.75 is: 3,748.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,811.79 : 6,640.82 = 2,715.75 : x
  2. Step 2: Convert to fraction form
    4,811.79/6,640.82 = 2,715.75/x
  3. Step 3: Cross multiply
    4,811.79x = 6,640.82 × 2,715.75
  4. Step 4: Simplify right side
    4,811.79x = 18,034,793.34
  5. Step 5: Solve for x
    x = 18,034,793.34/4,811.79
  6. Step 6: Final answer
    x = 3,748.04

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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.