Home / 3,391.05-5,094.78-2,160.84

Finding the Fourth Proportional to 3,391.05, 5,094.78 and 2,160.84

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Solution

The fourth proportional to 3,391.05, 5,094.78 and 2,160.84 is: 3,246.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.05 : 5,094.78 = 2,160.84 : x
  2. Step 2: Convert to fraction form
    3,391.05/5,094.78 = 2,160.84/x
  3. Step 3: Cross multiply
    3,391.05x = 5,094.78 × 2,160.84
  4. Step 4: Simplify right side
    3,391.05x = 11,009,004.42
  5. Step 5: Solve for x
    x = 11,009,004.42/3,391.05
  6. Step 6: Final answer
    x = 3,246.49

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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.