Home / 3,410.81-5,115.70-945.37

Finding the Fourth Proportional to 3,410.81, 5,115.70 and 945.37

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Solution

The fourth proportional to 3,410.81, 5,115.70 and 945.37 is: 1,417.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,410.81 : 5,115.70 = 945.37 : x
  2. Step 2: Convert to fraction form
    3,410.81/5,115.70 = 945.37/x
  3. Step 3: Cross multiply
    3,410.81x = 5,115.70 × 945.37
  4. Step 4: Simplify right side
    3,410.81x = 4,836,199.00
  5. Step 5: Solve for x
    x = 4,836,199.00/3,410.81
  6. Step 6: Final answer
    x = 1,417.91

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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.