Home / 2,097.85-3,149.21-1,125.85

Finding the Fourth Proportional to 2,097.85, 3,149.21 and 1,125.85

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Solution

The fourth proportional to 2,097.85, 3,149.21 and 1,125.85 is: 1,690.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,097.85 : 3,149.21 = 1,125.85 : x
  2. Step 2: Convert to fraction form
    2,097.85/3,149.21 = 1,125.85/x
  3. Step 3: Cross multiply
    2,097.85x = 3,149.21 × 1,125.85
  4. Step 4: Simplify right side
    2,097.85x = 3,545,524.58
  5. Step 5: Solve for x
    x = 3,545,524.58/2,097.85
  6. Step 6: Final answer
    x = 1,690.08

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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.