Home / 5,310.72-7,326.32-3,185.28

Finding the Fourth Proportional to 5,310.72, 7,326.32 and 3,185.28

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Solution

The fourth proportional to 5,310.72, 7,326.32 and 3,185.28 is: 4,394.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,310.72 : 7,326.32 = 3,185.28 : x
  2. Step 2: Convert to fraction form
    5,310.72/7,326.32 = 3,185.28/x
  3. Step 3: Cross multiply
    5,310.72x = 7,326.32 × 3,185.28
  4. Step 4: Simplify right side
    5,310.72x = 23,336,364.64
  5. Step 5: Solve for x
    x = 23,336,364.64/5,310.72
  6. Step 6: Final answer
    x = 4,394.20

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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.