Home / 3,539.20-5,301.60-1,808.80

Finding the Fourth Proportional to 3,539.20, 5,301.60 and 1,808.80

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Solution

The fourth proportional to 3,539.20, 5,301.60 and 1,808.80 is: 2,709.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,539.20 : 5,301.60 = 1,808.80 : x
  2. Step 2: Convert to fraction form
    3,539.20/5,301.60 = 1,808.80/x
  3. Step 3: Cross multiply
    3,539.20x = 5,301.60 × 1,808.80
  4. Step 4: Simplify right side
    3,539.20x = 9,589,534.08
  5. Step 5: Solve for x
    x = 9,589,534.08/3,539.20
  6. Step 6: Final answer
    x = 2,709.52

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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.