Home / 3,715.09-5,121.08-2,769.44

Finding the Fourth Proportional to 3,715.09, 5,121.08 and 2,769.44

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Solution

The fourth proportional to 3,715.09, 5,121.08 and 2,769.44 is: 3,817.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715.09 : 5,121.08 = 2,769.44 : x
  2. Step 2: Convert to fraction form
    3,715.09/5,121.08 = 2,769.44/x
  3. Step 3: Cross multiply
    3,715.09x = 5,121.08 × 2,769.44
  4. Step 4: Simplify right side
    3,715.09x = 14,182,497.15
  5. Step 5: Solve for x
    x = 14,182,497.15/3,715.09
  6. Step 6: Final answer
    x = 3,817.54

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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.