Home / 1,619.04-2,431.20-1,229.12

Finding the Fourth Proportional to 1,619.04, 2,431.20 and 1,229.12

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Solution

The fourth proportional to 1,619.04, 2,431.20 and 1,229.12 is: 1,845.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619.04 : 2,431.20 = 1,229.12 : x
  2. Step 2: Convert to fraction form
    1,619.04/2,431.20 = 1,229.12/x
  3. Step 3: Cross multiply
    1,619.04x = 2,431.20 × 1,229.12
  4. Step 4: Simplify right side
    1,619.04x = 2,988,236.54
  5. Step 5: Solve for x
    x = 2,988,236.54/1,619.04
  6. Step 6: Final answer
    x = 1,845.68

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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.