Home / 5,210.38-7,815.66-1,700.43

Finding the Fourth Proportional to 5,210.38, 7,815.66 and 1,700.43

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Solution

The fourth proportional to 5,210.38, 7,815.66 and 1,700.43 is: 2,550.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,210.38 : 7,815.66 = 1,700.43 : x
  2. Step 2: Convert to fraction form
    5,210.38/7,815.66 = 1,700.43/x
  3. Step 3: Cross multiply
    5,210.38x = 7,815.66 × 1,700.43
  4. Step 4: Simplify right side
    5,210.38x = 13,289,982.73
  5. Step 5: Solve for x
    x = 13,289,982.73/5,210.38
  6. Step 6: Final answer
    x = 2,550.67

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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.