Home / 2,106.29-3,157.20-1,009.95

Finding the Fourth Proportional to 2,106.29, 3,157.20 and 1,009.95

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Solution

The fourth proportional to 2,106.29, 3,157.20 and 1,009.95 is: 1,513.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106.29 : 3,157.20 = 1,009.95 : x
  2. Step 2: Convert to fraction form
    2,106.29/3,157.20 = 1,009.95/x
  3. Step 3: Cross multiply
    2,106.29x = 3,157.20 × 1,009.95
  4. Step 4: Simplify right side
    2,106.29x = 3,188,614.14
  5. Step 5: Solve for x
    x = 3,188,614.14/2,106.29
  6. Step 6: Final answer
    x = 1,513.86

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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.