Home / 4,989.36-6,882.12-3,000.54

Finding the Fourth Proportional to 4,989.36, 6,882.12 and 3,000.54

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Solution

The fourth proportional to 4,989.36, 6,882.12 and 3,000.54 is: 4,138.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.36 : 6,882.12 = 3,000.54 : x
  2. Step 2: Convert to fraction form
    4,989.36/6,882.12 = 3,000.54/x
  3. Step 3: Cross multiply
    4,989.36x = 6,882.12 × 3,000.54
  4. Step 4: Simplify right side
    4,989.36x = 20,650,076.34
  5. Step 5: Solve for x
    x = 20,650,076.34/4,989.36
  6. Step 6: Final answer
    x = 4,138.82

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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.