Home / 7,484.20-11,217.30-3,099.40

Finding the Fourth Proportional to 7,484.20, 11,217.30 and 3,099.40

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Solution

The fourth proportional to 7,484.20, 11,217.30 and 3,099.40 is: 4,645.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,484.20 : 11,217.30 = 3,099.40 : x
  2. Step 2: Convert to fraction form
    7,484.20/11,217.30 = 3,099.40/x
  3. Step 3: Cross multiply
    7,484.20x = 11,217.30 × 3,099.40
  4. Step 4: Simplify right side
    7,484.20x = 34,766,899.62
  5. Step 5: Solve for x
    x = 34,766,899.62/7,484.20
  6. Step 6: Final answer
    x = 4,645.37

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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.