Home / 3,455.46-5,178.60-1,505.52

Finding the Fourth Proportional to 3,455.46, 5,178.60 and 1,505.52

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Solution

The fourth proportional to 3,455.46, 5,178.60 and 1,505.52 is: 2,256.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.46 : 5,178.60 = 1,505.52 : x
  2. Step 2: Convert to fraction form
    3,455.46/5,178.60 = 1,505.52/x
  3. Step 3: Cross multiply
    3,455.46x = 5,178.60 × 1,505.52
  4. Step 4: Simplify right side
    3,455.46x = 7,796,485.87
  5. Step 5: Solve for x
    x = 7,796,485.87/3,455.46
  6. Step 6: Final answer
    x = 2,256.28

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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.