Home / 6,887.09-10,330.71-2,728.12

Finding the Fourth Proportional to 6,887.09, 10,330.71 and 2,728.12

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Solution

The fourth proportional to 6,887.09, 10,330.71 and 2,728.12 is: 4,092.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,887.09 : 10,330.71 = 2,728.12 : x
  2. Step 2: Convert to fraction form
    6,887.09/10,330.71 = 2,728.12/x
  3. Step 3: Cross multiply
    6,887.09x = 10,330.71 × 2,728.12
  4. Step 4: Simplify right side
    6,887.09x = 28,183,390.74
  5. Step 5: Solve for x
    x = 28,183,390.74/6,887.09
  6. Step 6: Final answer
    x = 4,092.20

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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.