Home / 1,690.46-2,331.68-1,469.03

Finding the Fourth Proportional to 1,690.46, 2,331.68 and 1,469.03

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Solution

The fourth proportional to 1,690.46, 2,331.68 and 1,469.03 is: 2,026.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690.46 : 2,331.68 = 1,469.03 : x
  2. Step 2: Convert to fraction form
    1,690.46/2,331.68 = 1,469.03/x
  3. Step 3: Cross multiply
    1,690.46x = 2,331.68 × 1,469.03
  4. Step 4: Simplify right side
    1,690.46x = 3,425,288.87
  5. Step 5: Solve for x
    x = 3,425,288.87/1,690.46
  6. Step 6: Final answer
    x = 2,026.25

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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.