Home / 3,944.80-5,915.13-1,171.09

Finding the Fourth Proportional to 3,944.80, 5,915.13 and 1,171.09

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Solution

The fourth proportional to 3,944.80, 5,915.13 and 1,171.09 is: 1,756.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,944.80 : 5,915.13 = 1,171.09 : x
  2. Step 2: Convert to fraction form
    3,944.80/5,915.13 = 1,171.09/x
  3. Step 3: Cross multiply
    3,944.80x = 5,915.13 × 1,171.09
  4. Step 4: Simplify right side
    3,944.80x = 6,927,149.59
  5. Step 5: Solve for x
    x = 6,927,149.59/3,944.80
  6. Step 6: Final answer
    x = 1,756.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.