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Finding the Fourth Proportional to 3,399, 5,072.23 and 3,030.85

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Solution

The fourth proportional to 3,399, 5,072.23 and 3,030.85 is: 4,522.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,399 : 5,072.23 = 3,030.85 : x
  2. Step 2: Convert to fraction form
    3,399/5,072.23 = 3,030.85/x
  3. Step 3: Cross multiply
    3,399x = 5,072.23 × 3,030.85
  4. Step 4: Simplify right side
    3,399x = 15,373,168.30
  5. Step 5: Solve for x
    x = 15,373,168.30/3,399
  6. Step 6: Final answer
    x = 4,522.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.