Home / 5,072.05-7,605.19-2,148.85

Finding the Fourth Proportional to 5,072.05, 7,605.19 and 2,148.85

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Solution

The fourth proportional to 5,072.05, 7,605.19 and 2,148.85 is: 3,222.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,072.05 : 7,605.19 = 2,148.85 : x
  2. Step 2: Convert to fraction form
    5,072.05/7,605.19 = 2,148.85/x
  3. Step 3: Cross multiply
    5,072.05x = 7,605.19 × 2,148.85
  4. Step 4: Simplify right side
    5,072.05x = 16,342,412.53
  5. Step 5: Solve for x
    x = 16,342,412.53/5,072.05
  6. Step 6: Final answer
    x = 3,222.05

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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.