Home / 2,074.90-3,109.09-1,449.58

Finding the Fourth Proportional to 2,074.90, 3,109.09 and 1,449.58

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Solution

The fourth proportional to 2,074.90, 3,109.09 and 1,449.58 is: 2,172.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,074.90 : 3,109.09 = 1,449.58 : x
  2. Step 2: Convert to fraction form
    2,074.90/3,109.09 = 1,449.58/x
  3. Step 3: Cross multiply
    2,074.90x = 3,109.09 × 1,449.58
  4. Step 4: Simplify right side
    2,074.90x = 4,506,874.68
  5. Step 5: Solve for x
    x = 4,506,874.68/2,074.90
  6. Step 6: Final answer
    x = 2,172.09

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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.