Home / 3,453.57-5,179.64-1,113.80

Finding the Fourth Proportional to 3,453.57, 5,179.64 and 1,113.80

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Solution

The fourth proportional to 3,453.57, 5,179.64 and 1,113.80 is: 1,670.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,453.57 : 5,179.64 = 1,113.80 : x
  2. Step 2: Convert to fraction form
    3,453.57/5,179.64 = 1,113.80/x
  3. Step 3: Cross multiply
    3,453.57x = 5,179.64 × 1,113.80
  4. Step 4: Simplify right side
    3,453.57x = 5,769,051.56
  5. Step 5: Solve for x
    x = 5,769,051.56/3,453.57
  6. Step 6: Final answer
    x = 1,670.46

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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.