Home / 7,216.38-10,825.76-2,218.64

Finding the Fourth Proportional to 7,216.38, 10,825.76 and 2,218.64

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Solution

The fourth proportional to 7,216.38, 10,825.76 and 2,218.64 is: 3,328.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,216.38 : 10,825.76 = 2,218.64 : x
  2. Step 2: Convert to fraction form
    7,216.38/10,825.76 = 2,218.64/x
  3. Step 3: Cross multiply
    7,216.38x = 10,825.76 × 2,218.64
  4. Step 4: Simplify right side
    7,216.38x = 24,018,398.94
  5. Step 5: Solve for x
    x = 24,018,398.94/7,216.38
  6. Step 6: Final answer
    x = 3,328.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.