Home / 2,149.90-3,219.06-1,365.65

Finding the Fourth Proportional to 2,149.90, 3,219.06 and 1,365.65

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Solution

The fourth proportional to 2,149.90, 3,219.06 and 1,365.65 is: 2,044.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,149.90 : 3,219.06 = 1,365.65 : x
  2. Step 2: Convert to fraction form
    2,149.90/3,219.06 = 1,365.65/x
  3. Step 3: Cross multiply
    2,149.90x = 3,219.06 × 1,365.65
  4. Step 4: Simplify right side
    2,149.90x = 4,396,109.29
  5. Step 5: Solve for x
    x = 4,396,109.29/2,149.90
  6. Step 6: Final answer
    x = 2,044.80

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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.