Home / 3,453.30-5,180.46-1,261.51

Finding the Fourth Proportional to 3,453.30, 5,180.46 and 1,261.51

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Solution

The fourth proportional to 3,453.30, 5,180.46 and 1,261.51 is: 1,892.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,453.30 : 5,180.46 = 1,261.51 : x
  2. Step 2: Convert to fraction form
    3,453.30/5,180.46 = 1,261.51/x
  3. Step 3: Cross multiply
    3,453.30x = 5,180.46 × 1,261.51
  4. Step 4: Simplify right side
    3,453.30x = 6,535,206.27
  5. Step 5: Solve for x
    x = 6,535,206.27/3,453.30
  6. Step 6: Final answer
    x = 1,892.45

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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.