Home / 2,106.30-3,157.08-1,282.77

Finding the Fourth Proportional to 2,106.30, 3,157.08 and 1,282.77

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Solution

The fourth proportional to 2,106.30, 3,157.08 and 1,282.77 is: 1,922.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106.30 : 3,157.08 = 1,282.77 : x
  2. Step 2: Convert to fraction form
    2,106.30/3,157.08 = 1,282.77/x
  3. Step 3: Cross multiply
    2,106.30x = 3,157.08 × 1,282.77
  4. Step 4: Simplify right side
    2,106.30x = 4,049,802.70
  5. Step 5: Solve for x
    x = 4,049,802.70/2,106.30
  6. Step 6: Final answer
    x = 1,922.71

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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.