Home / 3,039.12-4,555.35-1,189.92

Finding the Fourth Proportional to 3,039.12, 4,555.35 and 1,189.92

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Solution

The fourth proportional to 3,039.12, 4,555.35 and 1,189.92 is: 1,783.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,039.12 : 4,555.35 = 1,189.92 : x
  2. Step 2: Convert to fraction form
    3,039.12/4,555.35 = 1,189.92/x
  3. Step 3: Cross multiply
    3,039.12x = 4,555.35 × 1,189.92
  4. Step 4: Simplify right side
    3,039.12x = 5,420,502.07
  5. Step 5: Solve for x
    x = 5,420,502.07/3,039.12
  6. Step 6: Final answer
    x = 1,783.58

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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.