Home / 4,815.13-7,226.70-4,778.68

Finding the Fourth Proportional to 4,815.13, 7,226.70 and 4,778.68

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Solution

The fourth proportional to 4,815.13, 7,226.70 and 4,778.68 is: 7,171.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.13 : 7,226.70 = 4,778.68 : x
  2. Step 2: Convert to fraction form
    4,815.13/7,226.70 = 4,778.68/x
  3. Step 3: Cross multiply
    4,815.13x = 7,226.70 × 4,778.68
  4. Step 4: Simplify right side
    4,815.13x = 34,534,086.76
  5. Step 5: Solve for x
    x = 34,534,086.76/4,815.13
  6. Step 6: Final answer
    x = 7,171.99

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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.