Home / 2,101.38-2,899.91-1,169.88

Finding the Fourth Proportional to 2,101.38, 2,899.91 and 1,169.88

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Solution

The fourth proportional to 2,101.38, 2,899.91 and 1,169.88 is: 1,614.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101.38 : 2,899.91 = 1,169.88 : x
  2. Step 2: Convert to fraction form
    2,101.38/2,899.91 = 1,169.88/x
  3. Step 3: Cross multiply
    2,101.38x = 2,899.91 × 1,169.88
  4. Step 4: Simplify right side
    2,101.38x = 3,392,546.71
  5. Step 5: Solve for x
    x = 3,392,546.71/2,101.38
  6. Step 6: Final answer
    x = 1,614.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.