Home / 5,309.20-7,326.84-2,951.20

Finding the Fourth Proportional to 5,309.20, 7,326.84 and 2,951.20

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Solution

The fourth proportional to 5,309.20, 7,326.84 and 2,951.20 is: 4,072.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,309.20 : 7,326.84 = 2,951.20 : x
  2. Step 2: Convert to fraction form
    5,309.20/7,326.84 = 2,951.20/x
  3. Step 3: Cross multiply
    5,309.20x = 7,326.84 × 2,951.20
  4. Step 4: Simplify right side
    5,309.20x = 21,622,970.21
  5. Step 5: Solve for x
    x = 21,622,970.21/5,309.20
  6. Step 6: Final answer
    x = 4,072.74

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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.