Home / 2,824.12-3,887.76-2,428.84

Finding the Fourth Proportional to 2,824.12, 3,887.76 and 2,428.84

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Solution

The fourth proportional to 2,824.12, 3,887.76 and 2,428.84 is: 3,343.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,824.12 : 3,887.76 = 2,428.84 : x
  2. Step 2: Convert to fraction form
    2,824.12/3,887.76 = 2,428.84/x
  3. Step 3: Cross multiply
    2,824.12x = 3,887.76 × 2,428.84
  4. Step 4: Simplify right side
    2,824.12x = 9,442,747.00
  5. Step 5: Solve for x
    x = 9,442,747.00/2,824.12
  6. Step 6: Final answer
    x = 3,343.61

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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.