Home / 5,310.09-7,328.30-3,185.71

Finding the Fourth Proportional to 5,310.09, 7,328.30 and 3,185.71

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Solution

The fourth proportional to 5,310.09, 7,328.30 and 3,185.71 is: 4,396.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,310.09 : 7,328.30 = 3,185.71 : x
  2. Step 2: Convert to fraction form
    5,310.09/7,328.30 = 3,185.71/x
  3. Step 3: Cross multiply
    5,310.09x = 7,328.30 × 3,185.71
  4. Step 4: Simplify right side
    5,310.09x = 23,345,828.24
  5. Step 5: Solve for x
    x = 23,345,828.24/5,310.09
  6. Step 6: Final answer
    x = 4,396.51

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1.5x scale

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.