Home / 2,189.93-3,285.01-1,670.75

Finding the Fourth Proportional to 2,189.93, 3,285.01 and 1,670.75

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Solution

The fourth proportional to 2,189.93, 3,285.01 and 1,670.75 is: 2,506.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189.93 : 3,285.01 = 1,670.75 : x
  2. Step 2: Convert to fraction form
    2,189.93/3,285.01 = 1,670.75/x
  3. Step 3: Cross multiply
    2,189.93x = 3,285.01 × 1,670.75
  4. Step 4: Simplify right side
    2,189.93x = 5,488,414.03
  5. Step 5: Solve for x
    x = 5,488,414.03/2,189.93
  6. Step 6: Final answer
    x = 2,506.21

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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.