Home / 5,310.57-7,328.02-3,072.09

Finding the Fourth Proportional to 5,310.57, 7,328.02 and 3,072.09

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Solution

The fourth proportional to 5,310.57, 7,328.02 and 3,072.09 is: 4,239.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,310.57 : 7,328.02 = 3,072.09 : x
  2. Step 2: Convert to fraction form
    5,310.57/7,328.02 = 3,072.09/x
  3. Step 3: Cross multiply
    5,310.57x = 7,328.02 × 3,072.09
  4. Step 4: Simplify right side
    5,310.57x = 22,512,336.96
  5. Step 5: Solve for x
    x = 22,512,336.96/5,310.57
  6. Step 6: Final answer
    x = 4,239.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.