Home / 3,289.05-4,538.89-1,891.80

Finding the Fourth Proportional to 3,289.05, 4,538.89 and 1,891.80

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Solution

The fourth proportional to 3,289.05, 4,538.89 and 1,891.80 is: 2,610.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,289.05 : 4,538.89 = 1,891.80 : x
  2. Step 2: Convert to fraction form
    3,289.05/4,538.89 = 1,891.80/x
  3. Step 3: Cross multiply
    3,289.05x = 4,538.89 × 1,891.80
  4. Step 4: Simplify right side
    3,289.05x = 8,586,648.46
  5. Step 5: Solve for x
    x = 8,586,648.46/3,289.05
  6. Step 6: Final answer
    x = 2,610.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.