Home / 5,310.19-7,328.73-3,072.07

Finding the Fourth Proportional to 5,310.19, 7,328.73 and 3,072.07

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Solution

The fourth proportional to 5,310.19, 7,328.73 and 3,072.07 is: 4,239.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,310.19 : 7,328.73 = 3,072.07 : x
  2. Step 2: Convert to fraction form
    5,310.19/7,328.73 = 3,072.07/x
  3. Step 3: Cross multiply
    5,310.19x = 7,328.73 × 3,072.07
  4. Step 4: Simplify right side
    5,310.19x = 22,514,371.57
  5. Step 5: Solve for x
    x = 22,514,371.57/5,310.19
  6. Step 6: Final answer
    x = 4,239.84

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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.