Home / 2,109.04-3,163.56-1,013.65

Finding the Fourth Proportional to 2,109.04, 3,163.56 and 1,013.65

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Solution

The fourth proportional to 2,109.04, 3,163.56 and 1,013.65 is: 1,520.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,109.04 : 3,163.56 = 1,013.65 : x
  2. Step 2: Convert to fraction form
    2,109.04/3,163.56 = 1,013.65/x
  3. Step 3: Cross multiply
    2,109.04x = 3,163.56 × 1,013.65
  4. Step 4: Simplify right side
    2,109.04x = 3,206,742.59
  5. Step 5: Solve for x
    x = 3,206,742.59/2,109.04
  6. Step 6: Final answer
    x = 1,520.48

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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.