Home / 7,487.58-11,231.56-3,103.86

Finding the Fourth Proportional to 7,487.58, 11,231.56 and 3,103.86

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Solution

The fourth proportional to 7,487.58, 11,231.56 and 3,103.86 is: 4,655.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,487.58 : 11,231.56 = 3,103.86 : x
  2. Step 2: Convert to fraction form
    7,487.58/11,231.56 = 3,103.86/x
  3. Step 3: Cross multiply
    7,487.58x = 11,231.56 × 3,103.86
  4. Step 4: Simplify right side
    7,487.58x = 34,861,189.82
  5. Step 5: Solve for x
    x = 34,861,189.82/7,487.58
  6. Step 6: Final answer
    x = 4,655.87

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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.