Home / 2,114.13-2,917.68-1,229.88

Finding the Fourth Proportional to 2,114.13, 2,917.68 and 1,229.88

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Solution

The fourth proportional to 2,114.13, 2,917.68 and 1,229.88 is: 1,697.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,114.13 : 2,917.68 = 1,229.88 : x
  2. Step 2: Convert to fraction form
    2,114.13/2,917.68 = 1,229.88/x
  3. Step 3: Cross multiply
    2,114.13x = 2,917.68 × 1,229.88
  4. Step 4: Simplify right side
    2,114.13x = 3,588,396.28
  5. Step 5: Solve for x
    x = 3,588,396.28/2,114.13
  6. Step 6: Final answer
    x = 1,697.34

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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.