Home / 2,113.09-3,165.68-1,768.64

Finding the Fourth Proportional to 2,113.09, 3,165.68 and 1,768.64

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Solution

The fourth proportional to 2,113.09, 3,165.68 and 1,768.64 is: 2,649.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113.09 : 3,165.68 = 1,768.64 : x
  2. Step 2: Convert to fraction form
    2,113.09/3,165.68 = 1,768.64/x
  3. Step 3: Cross multiply
    2,113.09x = 3,165.68 × 1,768.64
  4. Step 4: Simplify right side
    2,113.09x = 5,598,936.87
  5. Step 5: Solve for x
    x = 5,598,936.87/2,113.09
  6. Step 6: Final answer
    x = 2,649.65

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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.