Home / 2,106.51-3,157.36-1,282.96

Finding the Fourth Proportional to 2,106.51, 3,157.36 and 1,282.96

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Solution

The fourth proportional to 2,106.51, 3,157.36 and 1,282.96 is: 1,922.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106.51 : 3,157.36 = 1,282.96 : x
  2. Step 2: Convert to fraction form
    2,106.51/3,157.36 = 1,282.96/x
  3. Step 3: Cross multiply
    2,106.51x = 3,157.36 × 1,282.96
  4. Step 4: Simplify right side
    2,106.51x = 4,050,755.48
  5. Step 5: Solve for x
    x = 4,050,755.48/2,106.51
  6. Step 6: Final answer
    x = 1,922.97

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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.