Home / 2,164.13-3,246.21-1,189.70

Finding the Fourth Proportional to 2,164.13, 3,246.21 and 1,189.70

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Solution

The fourth proportional to 2,164.13, 3,246.21 and 1,189.70 is: 1,784.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,164.13 : 3,246.21 = 1,189.70 : x
  2. Step 2: Convert to fraction form
    2,164.13/3,246.21 = 1,189.70/x
  3. Step 3: Cross multiply
    2,164.13x = 3,246.21 × 1,189.70
  4. Step 4: Simplify right side
    2,164.13x = 3,862,011.98
  5. Step 5: Solve for x
    x = 3,862,011.98/2,164.13
  6. Step 6: Final answer
    x = 1,784.56

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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.