Home / 7,538.72-11,306.88-3,155.84

Finding the Fourth Proportional to 7,538.72, 11,306.88 and 3,155.84

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Solution

The fourth proportional to 7,538.72, 11,306.88 and 3,155.84 is: 4,733.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,538.72 : 11,306.88 = 3,155.84 : x
  2. Step 2: Convert to fraction form
    7,538.72/11,306.88 = 3,155.84/x
  3. Step 3: Cross multiply
    7,538.72x = 11,306.88 × 3,155.84
  4. Step 4: Simplify right side
    7,538.72x = 35,682,704.18
  5. Step 5: Solve for x
    x = 35,682,704.18/7,538.72
  6. Step 6: Final answer
    x = 4,733.26

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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.