Home / 5,000.28-7,489.88-2,778.98

Finding the Fourth Proportional to 5,000.28, 7,489.88 and 2,778.98

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Solution

The fourth proportional to 5,000.28, 7,489.88 and 2,778.98 is: 4,162.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,000.28 : 7,489.88 = 2,778.98 : x
  2. Step 2: Convert to fraction form
    5,000.28/7,489.88 = 2,778.98/x
  3. Step 3: Cross multiply
    5,000.28x = 7,489.88 × 2,778.98
  4. Step 4: Simplify right side
    5,000.28x = 20,814,226.72
  5. Step 5: Solve for x
    x = 20,814,226.72/5,000.28
  6. Step 6: Final answer
    x = 4,162.61

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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.