Home / 2,106.08-3,159.12-935.81

Finding the Fourth Proportional to 2,106.08, 3,159.12 and 935.81

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Solution

The fourth proportional to 2,106.08, 3,159.12 and 935.81 is: 1,403.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106.08 : 3,159.12 = 935.81 : x
  2. Step 2: Convert to fraction form
    2,106.08/3,159.12 = 935.81/x
  3. Step 3: Cross multiply
    2,106.08x = 3,159.12 × 935.81
  4. Step 4: Simplify right side
    2,106.08x = 2,956,336.09
  5. Step 5: Solve for x
    x = 2,956,336.09/2,106.08
  6. Step 6: Final answer
    x = 1,403.72

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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.