Home / 2,190.40-3,026.72-1,633.12

Finding the Fourth Proportional to 2,190.40, 3,026.72 and 1,633.12

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Solution

The fourth proportional to 2,190.40, 3,026.72 and 1,633.12 is: 2,256.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.40 : 3,026.72 = 1,633.12 : x
  2. Step 2: Convert to fraction form
    2,190.40/3,026.72 = 1,633.12/x
  3. Step 3: Cross multiply
    2,190.40x = 3,026.72 × 1,633.12
  4. Step 4: Simplify right side
    2,190.40x = 4,942,996.97
  5. Step 5: Solve for x
    x = 4,942,996.97/2,190.40
  6. Step 6: Final answer
    x = 2,256.66

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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.