Home / 3,410.37-5,115.87-945.18

Finding the Fourth Proportional to 3,410.37, 5,115.87 and 945.18

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Solution

The fourth proportional to 3,410.37, 5,115.87 and 945.18 is: 1,417.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,410.37 : 5,115.87 = 945.18 : x
  2. Step 2: Convert to fraction form
    3,410.37/5,115.87 = 945.18/x
  3. Step 3: Cross multiply
    3,410.37x = 5,115.87 × 945.18
  4. Step 4: Simplify right side
    3,410.37x = 4,835,418.01
  5. Step 5: Solve for x
    x = 4,835,418.01/3,410.37
  6. Step 6: Final answer
    x = 1,417.86

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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.